From a6eb3d19ebea15426183cb7e4f9f35f5b7956c22 Mon Sep 17 00:00:00 2001 From: Zach Marano Date: Wed, 10 Feb 2016 12:39:48 -0800 Subject: Disk expand package for EL6 --- disk-expand/LICENSE | 674 +++++++++++++++++++++ disk-expand/README.md | 54 ++ disk-expand/build_package.sh | 39 ++ disk-expand/etc/init.d/expand-root | 21 + disk-expand/gce-disk-expand-el6.spec | 52 ++ disk-expand/usr/bin/growpart | 629 +++++++++++++++++++ .../dracut/modules.d/50growroot/growroot-dummy.sh | 3 + .../share/dracut/modules.d/50growroot/growroot.sh | 89 +++ .../usr/share/dracut/modules.d/50growroot/install | 12 + 9 files changed, 1573 insertions(+) create mode 100644 disk-expand/LICENSE create mode 100644 disk-expand/README.md create mode 100755 disk-expand/build_package.sh create mode 100755 disk-expand/etc/init.d/expand-root create mode 100644 disk-expand/gce-disk-expand-el6.spec create mode 100755 disk-expand/usr/bin/growpart create mode 100755 disk-expand/usr/share/dracut/modules.d/50growroot/growroot-dummy.sh create mode 100755 disk-expand/usr/share/dracut/modules.d/50growroot/growroot.sh create mode 100755 disk-expand/usr/share/dracut/modules.d/50growroot/install diff --git a/disk-expand/LICENSE b/disk-expand/LICENSE new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/disk-expand/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + + To protect your rights, we need to prevent others from denying you +these rights or asking you to surrender the rights. Therefore, you have +certain responsibilities if you distribute copies of the software, or if +you modify it: responsibilities to respect the freedom of others. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must pass on to the recipients the same +freedoms that you received. You must make sure that they, too, receive +or can get the source code. And you must show them these terms so they +know their rights. + + Developers that use the GNU GPL protect your rights with two steps: +(1) assert copyright on the software, and (2) offer you this License +giving you legal permission to copy, distribute and/or modify it. + + For the developers' and authors' protection, the GPL clearly explains +that there is no warranty for this free software. For both users' and +authors' sake, the GPL requires that modified versions be marked as +changed, so that their problems will not be attributed erroneously to +authors of previous versions. + + Some devices are designed to deny users access to install or run +modified versions of the software inside them, although the manufacturer +can do so. This is fundamentally incompatible with the aim of +protecting users' freedom to change the software. The systematic +pattern of such abuse occurs in the area of products for individuals to +use, which is precisely where it is most unacceptable. Therefore, we +have designed this version of the GPL to prohibit the practice for those +products. If such problems arise substantially in other domains, we +stand ready to extend this provision to those domains in future versions +of the GPL, as needed to protect the freedom of users. + + Finally, every program is threatened constantly by software patents. +States should not allow patents to restrict development and use of +software on general-purpose computers, but in those that do, we wish to +avoid the special danger that patents applied to a free program could +make it effectively proprietary. To prevent this, the GPL assures that +patents cannot be used to render the program non-free. + + The precise terms and conditions for copying, distribution and +modification follow. + + TERMS AND CONDITIONS + + 0. Definitions. + + "This License" refers to version 3 of the GNU General Public License. + + "Copyright" also means copyright-like laws that apply to other kinds of +works, such as semiconductor masks. + + "The Program" refers to any copyrightable work licensed under this +License. Each licensee is addressed as "you". "Licensees" and +"recipients" may be individuals or organizations. + + To "modify" a work means to copy from or adapt all or part of the work +in a fashion requiring copyright permission, other than the making of an +exact copy. The resulting work is called a "modified version" of the +earlier work or a work "based on" the earlier work. + + A "covered work" means either the unmodified Program or a work based +on the Program. + + To "propagate" a work means to do anything with it that, without +permission, would make you directly or secondarily liable for +infringement under applicable copyright law, except executing it on a +computer or modifying a private copy. Propagation includes copying, +distribution (with or without modification), making available to the +public, and in some countries other activities as well. + + To "convey" a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user through +a computer network, with no transfer of a copy, is not conveying. + + An interactive user interface displays "Appropriate Legal Notices" +to the extent that it includes a convenient and prominently visible +feature that (1) displays an appropriate copyright notice, and (2) +tells the user that there is no warranty for the work (except to the +extent that warranties are provided), that licensees may convey the +work under this License, and how to view a copy of this License. If +the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + + 1. Source Code. + + The "source code" for a work means the preferred form of the work +for making modifications to it. "Object code" means any non-source +form of a work. + + A "Standard Interface" means an interface that either is an official +standard defined by a recognized standards body, or, in the case of +interfaces specified for a particular programming language, one that +is widely used among developers working in that language. + + The "System Libraries" of an executable work include anything, other +than the work as a whole, that (a) is included in the normal form of +packaging a Major Component, but which is not part of that Major +Component, and (b) serves only to enable use of the work with that +Major Component, or to implement a Standard Interface for which an +implementation is available to the public in source code form. A +"Major Component", in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system +(if any) on which the executable work runs, or a compiler used to +produce the work, or an object code interpreter used to run it. + + The "Corresponding Source" for a work in object code form means all +the source code needed to generate, install, and (for an executable +work) run the object code and to modify the work, including scripts to +control those activities. However, it does not include the work's +System Libraries, or general-purpose tools or generally available free +programs which are used unmodified in performing those activities but +which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for +the work, and the source code for shared libraries and dynamically +linked subprograms that the work is specifically designed to require, +such as by intimate data communication or control flow between those +subprograms and other parts of the work. + + The Corresponding Source need not include anything that users +can regenerate automatically from other parts of the Corresponding +Source. + + The Corresponding Source for a work in source code form is that +same work. + + 2. Basic Permissions. + + All rights granted under this License are granted for the term of +copyright on the Program, and are irrevocable provided the stated +conditions are met. This License explicitly affirms your unlimited +permission to run the unmodified Program. The output from running a +covered work is covered by this License only if the output, given its +content, constitutes a covered work. This License acknowledges your +rights of fair use or other equivalent, as provided by copyright law. + + You may make, run and propagate covered works that you do not +convey, without conditions so long as your license otherwise remains +in force. You may convey covered works to others for the sole purpose +of having them make modifications exclusively for you, or provide you +with facilities for running those works, provided that you comply with +the terms of this License in conveying all material for which you do +not control copyright. Those thus making or running the covered works +for you must do so exclusively on your behalf, under your direction +and control, on terms that prohibit them from making any copies of +your copyrighted material outside their relationship with you. + + Conveying under any other circumstances is permitted solely under +the conditions stated below. Sublicensing is not allowed; section 10 +makes it unnecessary. + + 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + + No covered work shall be deemed part of an effective technological +measure under any applicable law fulfilling obligations under article +11 of the WIPO copyright treaty adopted on 20 December 1996, or +similar laws prohibiting or restricting circumvention of such +measures. + + When you convey a covered work, you waive any legal power to forbid +circumvention of technological measures to the extent such circumvention +is effected by exercising rights under this License with respect to +the covered work, and you disclaim any intention to limit operation or +modification of the work as a means of enforcing, against the work's +users, your or third parties' legal rights to forbid circumvention of +technological measures. + + 4. Conveying Verbatim Copies. + + You may convey verbatim copies of the Program's source code as you +receive it, in any medium, provided that you conspicuously and +appropriately publish on each copy an appropriate copyright notice; +keep intact all notices stating that this License and any +non-permissive terms added in accord with section 7 apply to the code; +keep intact all notices of the absence of any warranty; and give all +recipients a copy of this License along with the Program. + + You may charge any price or no price for each copy that you convey, +and you may offer support or warranty protection for a fee. + + 5. Conveying Modified Source Versions. + + You may convey a work based on the Program, or the modifications to +produce it from the Program, in the form of source code under the +terms of section 4, provided that you also meet all of these conditions: + + a) The work must carry prominent notices stating that you modified + it, and giving a relevant date. + + b) The work must carry prominent notices stating that it is + released under this License and any conditions added under section + 7. This requirement modifies the requirement in section 4 to + "keep intact all notices". + + c) You must license the entire work, as a whole, under this + License to anyone who comes into possession of a copy. This + License will therefore apply, along with any applicable section 7 + additional terms, to the whole of the work, and all its parts, + regardless of how they are packaged. This License gives no + permission to license the work in any other way, but it does not + invalidate such permission if you have separately received it. + + d) If the work has interactive user interfaces, each must display + Appropriate Legal Notices; however, if the Program has interactive + interfaces that do not display Appropriate Legal Notices, your + work need not make them do so. + + A compilation of a covered work with other separate and independent +works, which are not by their nature extensions of the covered work, +and which are not combined with it such as to form a larger program, +in or on a volume of a storage or distribution medium, is called an +"aggregate" if the compilation and its resulting copyright are not +used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work +in an aggregate does not cause this License to apply to the other +parts of the aggregate. + + 6. Conveying Non-Source Forms. + + You may convey a covered work in object code form under the terms +of sections 4 and 5, provided that you also convey the +machine-readable Corresponding Source under the terms of this License, +in one of these ways: + + a) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by the + Corresponding Source fixed on a durable physical medium + customarily used for software interchange. + + b) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by a + written offer, valid for at least three years and valid for as + long as you offer spare parts or customer support for that product + model, to give anyone who possesses the object code either (1) a + copy of the Corresponding Source for all the software in the + product that is covered by this License, on a durable physical + medium customarily used for software interchange, for a price no + more than your reasonable cost of physically performing this + conveying of source, or (2) access to copy the + Corresponding Source from a network server at no charge. + + c) Convey individual copies of the object code with a copy of the + written offer to provide the Corresponding Source. This + alternative is allowed only occasionally and noncommercially, and + only if you received the object code with such an offer, in accord + with subsection 6b. + + d) Convey the object code by offering access from a designated + place (gratis or for a charge), and offer equivalent access to the + Corresponding Source in the same way through the same place at no + further charge. You need not require recipients to copy the + Corresponding Source along with the object code. If the place to + copy the object code is a network server, the Corresponding Source + may be on a different server (operated by you or a third party) + that supports equivalent copying facilities, provided you maintain + clear directions next to the object code saying where to find the + Corresponding Source. Regardless of what server hosts the + Corresponding Source, you remain obligated to ensure that it is + available for as long as needed to satisfy these requirements. + + e) Convey the object code using peer-to-peer transmission, provided + you inform other peers where the object code and Corresponding + Source of the work are being offered to the general public at no + charge under subsection 6d. + + A separable portion of the object code, whose source code is excluded +from the Corresponding Source as a System Library, need not be +included in conveying the object code work. + + A "User Product" is either (1) a "consumer product", which means any +tangible personal property which is normally used for personal, family, +or household purposes, or (2) anything designed or sold for incorporation +into a dwelling. In determining whether a product is a consumer product, +doubtful cases shall be resolved in favor of coverage. For a particular +product received by a particular user, "normally used" refers to a +typical or common use of that class of product, regardless of the status +of the particular user or of the way in which the particular user +actually uses, or expects or is expected to use, the product. A product +is a consumer product regardless of whether the product has substantial +commercial, industrial or non-consumer uses, unless such uses represent +the only significant mode of use of the product. + + "Installation Information" for a User Product means any methods, +procedures, authorization keys, or other information required to install +and execute modified versions of a covered work in that User Product from +a modified version of its Corresponding Source. The information must +suffice to ensure that the continued functioning of the modified object +code is in no case prevented or interfered with solely because +modification has been made. + + If you convey an object code work under this section in, or with, or +specifically for use in, a User Product, and the conveying occurs as +part of a transaction in which the right of possession and use of the +User Product is transferred to the recipient in perpetuity or for a +fixed term (regardless of how the transaction is characterized), the +Corresponding Source conveyed under this section must be accompanied +by the Installation Information. But this requirement does not apply +if neither you nor any third party retains the ability to install +modified object code on the User Product (for example, the work has +been installed in ROM). + + The requirement to provide Installation Information does not include a +requirement to continue to provide support service, warranty, or updates +for a work that has been modified or installed by the recipient, or for +the User Product in which it has been modified or installed. Access to a +network may be denied when the modification itself materially and +adversely affects the operation of the network or violates the rules and +protocols for communication across the network. + + Corresponding Source conveyed, and Installation Information provided, +in accord with this section must be in a format that is publicly +documented (and with an implementation available to the public in +source code form), and must require no special password or key for +unpacking, reading or copying. + + 7. Additional Terms. + + "Additional permissions" are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. +Additional permissions that are applicable to the entire Program shall +be treated as though they were included in this License, to the extent +that they are valid under applicable law. If additional permissions +apply only to part of the Program, that part may be used separately +under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + + When you convey a copy of a covered work, you may at your option +remove any additional permissions from that copy, or from any part of +it. (Additional permissions may be written to require their own +removal in certain cases when you modify the work.) You may place +additional permissions on material, added by you to a covered work, +for which you have or can give appropriate copyright permission. + + Notwithstanding any other provision of this License, for material you +add to a covered work, you may (if authorized by the copyright holders of +that material) supplement the terms of this License with terms: + + a) Disclaiming warranty or limiting liability differently from the + terms of sections 15 and 16 of this License; or + + b) Requiring preservation of specified reasonable legal notices or + author attributions in that material or in the Appropriate Legal + Notices displayed by works containing it; or + + c) Prohibiting misrepresentation of the origin of that material, or + requiring that modified versions of such material be marked in + reasonable ways as different from the original version; or + + d) Limiting the use for publicity purposes of names of licensors or + authors of the material; or + + e) Declining to grant rights under trademark law for use of some + trade names, trademarks, or service marks; or + + f) Requiring indemnification of licensors and authors of that + material by anyone who conveys the material (or modified versions of + it) with contractual assumptions of liability to the recipient, for + any liability that these contractual assumptions directly impose on + those licensors and authors. + + All other non-permissive additional terms are considered "further +restrictions" within the meaning of section 10. If the Program as you +received it, or any part of it, contains a notice stating that it is +governed by this License along with a term that is a further +restriction, you may remove that term. If a license document contains +a further restriction but permits relicensing or conveying under this +License, you may add to a covered work material governed by the terms +of that license document, provided that the further restriction does +not survive such relicensing or conveying. + + If you add terms to a covered work in accord with this section, you +must place, in the relevant source files, a statement of the +additional terms that apply to those files, or a notice indicating +where to find the applicable terms. + + Additional terms, permissive or non-permissive, may be stated in the +form of a separately written license, or stated as exceptions; +the above requirements apply either way. + + 8. Termination. + + You may not propagate or modify a covered work except as expressly +provided under this License. Any attempt otherwise to propagate or +modify it is void, and will automatically terminate your rights under +this License (including any patent licenses granted under the third +paragraph of section 11). + + However, if you cease all violation of this License, then your +license from a particular copyright holder is reinstated (a) +provisionally, unless and until the copyright holder explicitly and +finally terminates your license, and (b) permanently, if the copyright +holder fails to notify you of the violation by some reasonable means +prior to 60 days after the cessation. + + Moreover, your license from a particular copyright holder is +reinstated permanently if the copyright holder notifies you of the +violation by some reasonable means, this is the first time you have +received notice of violation of this License (for any work) from that +copyright holder, and you cure the violation prior to 30 days after +your receipt of the notice. + + Termination of your rights under this section does not terminate the +licenses of parties who have received copies or rights from you under +this License. If your rights have been terminated and not permanently +reinstated, you do not qualify to receive new licenses for the same +material under section 10. + + 9. Acceptance Not Required for Having Copies. + + You are not required to accept this License in order to receive or +run a copy of the Program. Ancillary propagation of a covered work +occurring solely as a consequence of using peer-to-peer transmission +to receive a copy likewise does not require acceptance. However, +nothing other than this License grants you permission to propagate or +modify any covered work. These actions infringe copyright if you do +not accept this License. Therefore, by modifying or propagating a +covered work, you indicate your acceptance of this License to do so. + + 10. Automatic Licensing of Downstream Recipients. + + Each time you convey a covered work, the recipient automatically +receives a license from the original licensors, to run, modify and +propagate that work, subject to this License. You are not responsible +for enforcing compliance by third parties with this License. + + An "entity transaction" is a transaction transferring control of an +organization, or substantially all assets of one, or subdividing an +organization, or merging organizations. If propagation of a covered +work results from an entity transaction, each party to that +transaction who receives a copy of the work also receives whatever +licenses to the work the party's predecessor in interest had or could +give under the previous paragraph, plus a right to possession of the +Corresponding Source of the work from the predecessor in interest, if +the predecessor has it or can get it with reasonable efforts. + + You may not impose any further restrictions on the exercise of the +rights granted or affirmed under this License. For example, you may +not impose a license fee, royalty, or other charge for exercise of +rights granted under this License, and you may not initiate litigation +(including a cross-claim or counterclaim in a lawsuit) alleging that +any patent claim is infringed by making, using, selling, offering for +sale, or importing the Program or any portion of it. + + 11. Patents. + + A "contributor" is a copyright holder who authorizes use under this +License of the Program or a work on which the Program is based. The +work thus licensed is called the contributor's "contributor version". + + A contributor's "essential patent claims" are all patent claims +owned or controlled by the contributor, whether already acquired or +hereafter acquired, that would be infringed by some manner, permitted +by this License, of making, using, or selling its contributor version, +but do not include claims that would be infringed only as a +consequence of further modification of the contributor version. For +purposes of this definition, "control" includes the right to grant +patent sublicenses in a manner consistent with the requirements of +this License. + + Each contributor grants you a non-exclusive, worldwide, royalty-free +patent license under the contributor's essential patent claims, to +make, use, sell, offer for sale, import and otherwise run, modify and +propagate the contents of its contributor version. + + In the following three paragraphs, a "patent license" is any express +agreement or commitment, however denominated, not to enforce a patent +(such as an express permission to practice a patent or covenant not to +sue for patent infringement). To "grant" such a patent license to a +party means to make such an agreement or commitment not to enforce a +patent against the party. + + If you convey a covered work, knowingly relying on a patent license, +and the Corresponding Source of the work is not available for anyone +to copy, free of charge and under the terms of this License, through a +publicly available network server or other readily accessible means, +then you must either (1) cause the Corresponding Source to be so +available, or (2) arrange to deprive yourself of the benefit of the +patent license for this particular work, or (3) arrange, in a manner +consistent with the requirements of this License, to extend the patent +license to downstream recipients. "Knowingly relying" means you have +actual knowledge that, but for the patent license, your conveying the +covered work in a country, or your recipient's use of the covered work +in a country, would infringe one or more identifiable patents in that +country that you have reason to believe are valid. + + If, pursuant to or in connection with a single transaction or +arrangement, you convey, or propagate by procuring conveyance of, a +covered work, and grant a patent license to some of the parties +receiving the covered work authorizing them to use, propagate, modify +or convey a specific copy of the covered work, then the patent license +you grant is automatically extended to all recipients of the covered +work and works based on it. + + A patent license is "discriminatory" if it does not include within +the scope of its coverage, prohibits the exercise of, or is +conditioned on the non-exercise of one or more of the rights that are +specifically granted under this License. You may not convey a covered +work if you are a party to an arrangement with a third party that is +in the business of distributing software, under which you make payment +to the third party based on the extent of your activity of conveying +the work, and under which the third party grants, to any of the +parties who would receive the covered work from you, a discriminatory +patent license (a) in connection with copies of the covered work +conveyed by you (or copies made from those copies), or (b) primarily +for and in connection with specific products or compilations that +contain the covered work, unless you entered into that arrangement, +or that patent license was granted, prior to 28 March 2007. + + Nothing in this License shall be construed as excluding or limiting +any implied license or other defenses to infringement that may +otherwise be available to you under applicable patent law. + + 12. No Surrender of Others' Freedom. + + If conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot convey a +covered work so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you may +not convey it at all. For example, if you agree to terms that obligate you +to collect a royalty for further conveying from those to whom you convey +the Program, the only way you could satisfy both those terms and this +License would be to refrain entirely from conveying the Program. + + 13. Use with the GNU Affero General Public License. + + Notwithstanding any other provision of this License, you have +permission to link or combine any covered work with a work licensed +under version 3 of the GNU Affero General Public License into a single +combined work, and to convey the resulting work. The terms of this +License will continue to apply to the part which is the covered work, +but the special requirements of the GNU Affero General Public License, +section 13, concerning interaction through a network will apply to the +combination as such. + + 14. Revised Versions of this License. + + The Free Software Foundation may publish revised and/or new versions of +the GNU General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + + Each version is given a distinguishing version number. If the +Program specifies that a certain numbered version of the GNU General +Public License "or any later version" applies to it, you have the +option of following the terms and conditions either of that numbered +version or of any later version published by the Free Software +Foundation. If the Program does not specify a version number of the +GNU General Public License, you may choose any version ever published +by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future +versions of the GNU General Public License can be used, that proxy's +public statement of acceptance of a version permanently authorizes you +to choose that version for the Program. + + Later license versions may give you additional or different +permissions. However, no additional obligations are imposed on any +author or copyright holder as a result of your choosing to follow a +later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/disk-expand/README.md b/disk-expand/README.md new file mode 100644 index 0000000..f65e6ab --- /dev/null +++ b/disk-expand/README.md @@ -0,0 +1,54 @@ +## Experimental disk-expand package for GCE CentOS 6 and RHEL 6 images. + +This package is intended to expand the root partition up to 2TB on a GCE VM. It +consists of several scripts from other packages that for various reasons are not +maintained by the distros; cloud-utils-growpart, dracut-modules-growroot, and an +upstream version of the growpart script. See below for details. This package is +being provided on an experimental basis for GCE CentOS and RHEL 6 images only at +this time. + +### Build the package + +A script to build the package is provided for convenience. +`./build_package.sh /OUTPUT_DIR` will yield an rpm and an srpm in the +defined output directory. + +### Package usage + +1. Update your distro and reboot. If there is a kernel update, you need to be + running the new kernel for dracut to update it properly. Alternativley, if + there is not a kernel update you can just install the gce-disk-expand + package in the next step. + `yum -y update ; reboot` +1. Install the gce-disk-expand package with yum and reboot: + `yum -y install /PATH_TO/gce-disk-expand-el6-VER-DATE.x86_64.rpm ; reboot` + +Your root partition will now be expanded to the full size of your disk up to +2TB. + +#### Growpart + +The growpart script used in this package is not from the 0.27 +cloud-utils-growpart package. There are bugs in that version of growpart, +primarily a bug that doesn't respect 2TB disk partitions on MBR disks. This +means that if you had a disk that was 2.1TB, you would end up with a 0.1TB +partition instead of 2TB partition. Obviously, this is bad. The upstream +[cloud-utils 257 release](http://bazaar.launchpad.net/~cloud-utils-dev/cloud-utils/trunk/tarball/257) +fixes this bug and others while not introducing more bugs and dependencies in +further upstream releases of this script. It is therefore not recommended that +you try to use the [0.27 growpart package](http://rpmfind.net/linux/RPM/epel/6/x86_64/cloud-utils-growpart-0.27-10.el6.x86_64.html) +from the EPEL repo. + +#### Dracut modules + +The dracut modules are taken unmodified from the [dracut-modules-growroot](http://rpmfind.net/linux/RPM/epel/6/x86_64/dracut-modules-growroot-0.20-2.el6.noarch.html) +package in the EPEL 6 repo. The dracut module allows the partition table to be +expanded on boot before / is mounted and prevents an additional reboot. + +#### The expand-root init.d script + +The expand-root init.d script is derived from the +[bootstrap-vz version](https://github.com/andsens/bootstrap-vz/blob/c682dab6ec51767b6e529c1589c5630f6295953a/bootstrapvz/common/assets/init.d/expand-root) +of this script used for Debian instances. Essentially, it just calls the proper +filesystem expansion utility to live resize the filesystem on first boot. The +root partition is hard coded as /dev/sda1 in this script. diff --git a/disk-expand/build_package.sh b/disk-expand/build_package.sh new file mode 100755 index 0000000..d40ea3d --- /dev/null +++ b/disk-expand/build_package.sh @@ -0,0 +1,39 @@ +#!/bin/bash +# Copyright 2016 Google Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +if [[ -d $1 ]]; then + echo "Saving packages to $1" + RPM_DEST=$1 +else + RPM_DEST="/tmp" +fi + +RPM_TOP=$(mktemp -d) +SPEC_FILE="gce-disk-expand-el6.spec" + +echo "Setup" +mkdir -p ${RPM_TOP}/SOURCES +cp -R * ${RPM_TOP}/SOURCES + +echo "Building" +rpmbuild --define "_topdir ${RPM_TOP}" -ba ${SPEC_FILE} + +echo "Copying rpm's to ${RPM_DEST}" +cp ${RPM_TOP}/RPMS/x86_64/*.rpm ${RPM_DEST} +cp ${RPM_TOP}/SRPMS/*.rpm ${RPM_DEST} +ls -l ${RPM_DEST}/*.rpm + +echo "Cleaning up" +rm -Rf ${RPM_TOP} diff --git a/disk-expand/etc/init.d/expand-root b/disk-expand/etc/init.d/expand-root new file mode 100755 index 0000000..aba65dd --- /dev/null +++ b/disk-expand/etc/init.d/expand-root @@ -0,0 +1,21 @@ +#!/bin/bash +### BEGIN INIT INFO +# Provides: expand-root +# Default-Start: 2 3 4 5 +# Description: Expand the filesystem of the mounted root volume/partition to its maximum possible size +### END INIT INFO + +prog=$(basename $0) +logger="logger -t $prog" + +device_path="/dev/sda1" + +filesystem=$(blkid -s TYPE -o value ${device_path}) + +case $filesystem in + xfs) xfs_growfs / ;; + ext2) resize2fs $device_path ;; + ext3) resize2fs $device_path ;; + ext4) resize2fs $device_path ;; + *) $logger "The filesystem $filesystem was not recognized. Unable to expand size." ;; +esac diff --git a/disk-expand/gce-disk-expand-el6.spec b/disk-expand/gce-disk-expand-el6.spec new file mode 100644 index 0000000..e8f0e12 --- /dev/null +++ b/disk-expand/gce-disk-expand-el6.spec @@ -0,0 +1,52 @@ +# Copyright 2016 Google Inc. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +Name: gce-disk-expand +Summary: Google Compute Engine root disk expansion utilities for EL6 +Version: 0.9.0 +Release: %(date +%s).el6 +License: GPLv3, Apache Software License +Group: System Environment/Base +URL: https://github.com/GoogleCloudPlatform/compute-image-packages +Requires: gawk, e2fsprogs, file, dracut, grep, util-linux, gdisk +Conflicts: cloud-utils-growpart, cloud-utils, dracut-modules-growroot + +# Allow other files in the source that don't end up in the package. +%define _unpackaged_files_terminate_build 0 + +%description +gce-disk-expand: Automatically resize the root partition on first boot. + +This package is adopted from cloud-utils, cloud-initramfs-tools, and +cloud-utils-growpart. + +%install +rm -rf $RPM_BUILD_ROOT +mkdir -p $RPM_BUILD_ROOT +cp -R $RPM_SOURCE_DIR/etc $RPM_BUILD_ROOT +cp -R $RPM_SOURCE_DIR/usr $RPM_BUILD_ROOT + +%files +%attr(755,root,root) /etc/init.d/expand-root +%attr(755,root,root) /usr/bin/growpart +%attr(755,root,root) /usr/share/dracut/modules.d/50growroot/growroot-dummy.sh +%attr(755,root,root) /usr/share/dracut/modules.d/50growroot/growroot.sh +%attr(755,root,root) /usr/share/dracut/modules.d/50growroot/install + +%post +dracut --force +chkconfig --level 2345 expand-root on + +%postun +dracut --force +chkconfig expand-root off diff --git a/disk-expand/usr/bin/growpart b/disk-expand/usr/bin/growpart new file mode 100755 index 0000000..ce3b787 --- /dev/null +++ b/disk-expand/usr/bin/growpart @@ -0,0 +1,629 @@ +#!/bin/sh +# Copyright (C) 2011 Canonical Ltd. +# Copyright (C) 2013 Hewlett-Packard Development Company, L.P. +# +# Authors: Scott Moser +# Juerg Haefliger +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, version 3 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# the fudge factor. if its within this many 512 byte sectors, dont bother +FUDGE=${GROWPART_FUDGE:-$((20*1024))} +TEMP_D="" +RESTORE_FUNC="" +RESTORE_HUMAN="" +VERBOSITY=0 +DISK="" +PART="" +PT_UPDATE=false +DRY_RUN=0 + +MBR_CHS="" +MBR_BACKUP="" +GPT_BACKUP="" +_capture="" + +error() { + echo "$@" 1>&2 +} + +fail() { + [ $# -eq 0 ] || echo "FAILED:" "$@" + exit 2 +} + +nochange() { + echo "NOCHANGE:" "$@" + exit 1 +} + +changed() { + echo "CHANGED:" "$@" + exit 0 +} + +change() { + echo "CHANGE:" "$@" + exit 0 +} + +cleanup() { + if [ -n "${RESTORE_FUNC}" ]; then + error "***** WARNING: Resize failed, attempting to revert ******" + if ${RESTORE_FUNC} ; then + error "***** Appears to have gone OK ****" + else + error "***** FAILED! ******" + if [ -n "${RESTORE_HUMAN}" -a -f "${RESTORE_HUMAN}" ]; then + error "**** original table looked like: ****" + cat "${RESTORE_HUMAN}" 1>&2 + else + error "We seem to have not saved the partition table!" + fi + fi + fi + [ -z "${TEMP_D}" -o ! -d "${TEMP_D}" ] || rm -Rf "${TEMP_D}" +} + +debug() { + local level=${1} + shift + [ "${level}" -gt "${VERBOSITY}" ] && return + if [ "${DEBUG_LOG}" ]; then + echo "$@" >>"${DEBUG_LOG}" + else + error "$@" + fi +} + +debugcat() { + local level="$1" + shift; + [ "${level}" -gt "$VERBOSITY" ] && return + if [ "${DEBUG_LOG}" ]; then + cat "$@" >>"${DEBUG_LOG}" + else + cat "$@" 1>&2 + fi +} + +mktemp_d() { + # just a mktemp -d that doens't need mktemp if its not there. + _RET=$(mktemp -d "${TMPDIR:-/tmp}/${0##*/}.XXXXXX" 2>/dev/null) && + return + _RET=$(umask 077 && t="${TMPDIR:-/tmp}/${0##*/}.$$" && + mkdir "${t}" && echo "${t}") + return +} + +Usage() { + cat <&2 + error "$@" + exit 2 +} + +mbr_restore() { + sfdisk --no-reread "${DISK}" ${MBR_CHS} -I "${MBR_BACKUP}" +} + +sfdisk_worked_but_blkrrpart_failed() { + local ret="$1" output="$2" + # exit code found was just 1, but dont insist on that + #[ $ret -eq 1 ] || return 1 + # Successfully wrote the new partition table + grep -qi "Success.* wrote.* new.* partition" "$output" && + grep -qi "BLKRRPART: Device or resource busy" "$output" + return +} + +mbr_resize() { + local humanpt="${TEMP_D}/recovery" + local mbr_backup="${TEMP_D}/orig.save" + + local change_out=${TEMP_D}/change.out + local dump_out=${TEMP_D}/dump.out + local new_out=${TEMP_D}/new.out + local dump_mod=${TEMP_D}/dump.mod + local tmp="${TEMP_D}/tmp.out" + local err="${TEMP_D}/err.out" + local mbr_max_512="4294967296" + + local _devc cyl _w1 heads _w2 sectors _w3 tot dpart + local pt_start pt_size pt_end max_end new_size change_info + + # --show-pt-geometry outputs something like + # /dev/sda: 164352 cylinders, 4 heads, 32 sectors/track + rqe sfd_geom sfdisk "${DISK}" --show-pt-geometry >"${tmp}" && + read _devc cyl _w1 heads _w2 sectors _w3 <"${tmp}" && + MBR_CHS="-C ${cyl} -H ${heads} -S ${sectors}" || + fail "failed to get CHS from ${DISK}" + + tot=$((${cyl}*${heads}*${sectors})) + + debug 1 "geometry is ${MBR_CHS}. total size=${tot}" + [ "$tot" -gt "$mbr_max_512" ] && + debug 1 "WARN: disk is larger than 2TB. additional space will go unused." + + rqe sfd_dump sfdisk ${MBR_CHS} --unit=S --dump "${DISK}" \ + >"${dump_out}" || + fail "failed to dump sfdisk info for ${DISK}" + RESTORE_HUMAN="$dump_out" + + { + echo "## sfdisk ${MBR_CHS} --unit=S --dump ${DISK}" + cat "${dump_out}" + } >"$humanpt" + + [ $? -eq 0 ] || fail "failed to save sfdisk -d output" + RESTORE_HUMAN="$humanpt" + + debugcat 1 "$humanpt" + + sed -e 's/,//g; s/start=/start /; s/size=/size /' "${dump_out}" \ + >"${dump_mod}" || + fail "sed failed on dump output" + + dpart="${DISK}${PART}" # disk and partition number + if [ -b "${DISK}p${PART}" -a "${DISK%[0-9]}" != "${DISK}" ]; then + # for block devices that end in a number (/dev/nbd0) + # the partition is "p" (/dev/nbd0p1) + dpart="${DISK}p${PART}" + elif [ "${DISK#/dev/loop[0-9]}" != "${DISK}" ]; then + # for /dev/loop devices, sfdisk output will be p + # format also, even though there is not a device there. + dpart="${DISK}p${PART}" + fi + + pt_start=$(awk '$1 == pt { print $4 }' "pt=${dpart}" <"${dump_mod}") && + pt_size=$(awk '$1 == pt { print $6 }' "pt=${dpart}" <"${dump_mod}") && + [ -n "${pt_start}" -a -n "${pt_size}" ] && + pt_end=$((${pt_size}+${pt_start})) || + fail "failed to get start and end for ${dpart} in ${DISK}" + + # find the minimal starting location that is >= pt_end + max_end=$(awk '$3 == "start" { if($4 >= pt_end && $4 < min) + { min = $4 } } END { printf("%s\n",min); }' \ + min=${tot} pt_end=${pt_end} "${dump_mod}") && + [ -n "${max_end}" ] || + fail "failed to get max_end for partition ${PART}" + + if [ "$max_end" -gt "$mbr_max_512" ]; then + max_end=$mbr_max_512; + fi + + debug 1 "max_end=${max_end} tot=${tot} pt_end=${pt_end}" \ + "pt_start=${pt_start} pt_size=${pt_size}" + [ $((${pt_end})) -eq ${max_end} ] && + nochange "partition ${PART} is size ${pt_size}. it cannot be grown" + [ $((${pt_end}+${FUDGE})) -gt ${max_end} ] && + nochange "partition ${PART} could only be grown by" \ + "$((${max_end}-${pt_end})) [fudge=${FUDGE}]" + + # now, change the size for this partition in ${dump_out} to be the + # new size + new_size=$((${max_end}-${pt_start})) + sed "\|^\s*${dpart} |s/${pt_size},/${new_size},/" "${dump_out}" \ + >"${new_out}" || + fail "failed to change size in output" + + change_info="partition=${PART} start=${pt_start} old: size=${pt_size} end=${pt_end} new: size=${new_size},end=${max_end}" + if [ ${DRY_RUN} -ne 0 ]; then + echo "CHANGE: ${change_info}" + { + echo "# === old sfdisk -d ===" + cat "${dump_out}" + echo "# === new sfdisk -d ===" + cat "${new_out}" + } 1>&2 + exit 0 + fi + + MBR_BACKUP="${mbr_backup}" + LANG=C sfdisk --no-reread "${DISK}" ${MBR_CHS} --force \ + -O "${mbr_backup}" <"${new_out}" >"${change_out}" 2>&1 + ret=$? + [ $ret -eq 0 ] || RESTORE_FUNC="mbr_restore" + + if [ $ret -eq 0 ]; then + : + elif $PT_UPDATE && + sfdisk_worked_but_blkrrpart_failed "$ret" "${change_out}"; then + # if the command failed, but it looks like only because + # the device was busy and we have pt_update, then go on + debug 1 "sfdisk failed, but likely only because of blkrrpart" + else + error "attempt to resize ${DISK} failed. sfdisk output below:" + sed 's,^,| ,' "${change_out}" 1>&2 + fail "failed to resize" + fi + + rq pt_update pt_update "$DISK" "$PART" || + fail "pt_resize failed" + + RESTORE_FUNC="" + + changed "${change_info}" + + # dump_out looks something like: + ## partition table of /tmp/out.img + #unit: sectors + # + #/tmp/out.img1 : start= 1, size= 48194, Id=83 + #/tmp/out.img2 : start= 48195, size= 963900, Id=83 + #/tmp/out.img3 : start= 1012095, size= 305235, Id=82 + #/tmp/out.img4 : start= 1317330, size= 771120, Id= 5 + #/tmp/out.img5 : start= 1317331, size= 642599, Id=83 + #/tmp/out.img6 : start= 1959931, size= 48194, Id=83 + #/tmp/out.img7 : start= 2008126, size= 80324, Id=83 +} + +gpt_restore() { + sgdisk -l "${GPT_BACKUP}" "${DISK}" +} + +gpt_resize() { + GPT_BACKUP="${TEMP_D}/pt.backup" + + local pt_info="${TEMP_D}/pt.info" + local pt_pretend="${TEMP_D}/pt.pretend" + local pt_data="${TEMP_D}/pt.data" + local out="${TEMP_D}/out" + + local dev="disk=${DISK} partition=${PART}" + + local pt_start pt_end pt_size last pt_max code guid name new_size + local old new change_info + + # Dump the original partition information and details to disk. This is + # used in case something goes wrong and human interaction is required + # to revert any changes. + rqe sgd_info sgdisk "--info=${PART}" --print "${DISK}" >"${pt_info}" || + fail "${dev}: failed to dump original sgdisk info" + RESTORE_HUMAN="${pt_info}" + + debug 1 "$dev: original sgdisk info:" + debugcat 1 "${pt_info}" + + # Pretend to move the backup GPT header to the end of the disk and dump + # the resulting partition information. We use this info to determine if + # we have to resize the partition. + rqe sgd_pretend sgdisk --pretend --move-second-header \ + --print "${DISK}" >"${pt_pretend}" || + fail "${dev}: failed to dump pretend sgdisk info" + + debug 1 "$dev: pretend sgdisk info" + debugcat 1 "${pt_pretend}" + + # Extract the partition data from the pretend dump + awk 'found { print } ; $1 == "Number" { found = 1 }' \ + "${pt_pretend}" >"${pt_data}" || + fail "${dev}: failed to parse pretend sgdisk info" + + # Get the start and end sectors of the partition to be grown + pt_start=$(awk '$1 == '"${PART}"' { print $2 }' "${pt_data}") && + [ -n "${pt_start}" ] || + fail "${dev}: failed to get start sector" + pt_end=$(awk '$1 == '"${PART}"' { print $3 }' "${pt_data}") && + [ -n "${pt_end}" ] || + fail "${dev}: failed to get end sector" + pt_size="$((${pt_end} - ${pt_start}))" + + # Get the last usable sector + last=$(awk '/last usable sector is/ { print $NF }' \ + "${pt_pretend}") && [ -n "${last}" ] || + fail "${dev}: failed to get last usable sector" + + # Find the minimal start sector that is >= pt_end + pt_max=$(awk '{ if ($2 >= pt_end && $2 < min) { min = $2 } } END \ + { print min }' min="${last}" pt_end="${pt_end}" \ + "${pt_data}") && [ -n "${pt_max}" ] || + fail "${dev}: failed to find max end sector" + + debug 1 "${dev}: pt_start=${pt_start} pt_end=${pt_end}" \ + "pt_size=${pt_size} pt_max=${pt_max} last=${last}" + + # Check if the partition can be grown + [ "${pt_end}" -eq "${pt_max}" ] && + nochange "${dev}: size=${pt_size}, it cannot be grown" + [ "$((${pt_end} + ${FUDGE}))" -gt "${pt_max}" ] && + nochange "${dev}: could only be grown by" \ + "$((${pt_max} - ${pt_end})) [fudge=${FUDGE}]" + + # The partition can be grown if we made it here. Get some more info + # about it so we can do it properly. + # FIXME: Do we care about the attribute flags? + code=$(awk '/^Partition GUID code:/ { print $4 }' "${pt_info}") + guid=$(awk '/^Partition unique GUID:/ { print $4 }' "${pt_info}") + name=$(awk '/^Partition name:/ { gsub(/'"'"'/, "") ; \ + if (NF >= 3) print substr($0, index($0, $3)) }' "${pt_info}") + [ -n "${code}" -a -n "${guid}" ] || + fail "${dev}: failed to parse sgdisk details" + + debug 1 "${dev}: code=${code} guid=${guid} name='${name}'" + local wouldrun="" + [ "$DRY_RUN" -ne 0 ] && wouldrun="would-run" + + # Calculate the new size of the partition + new_size=$((${pt_max} - ${pt_start})) + old="old: size=${pt_size},end=${pt_end}" + new="new: size=${new_size},end=${pt_max}" + change_info="${dev}: start=${pt_start} ${old} ${new}" + + # Backup the current partition table, we're about to modify it + rq sgd_backup $wouldrun sgdisk "--backup=${GPT_BACKUP}" "${DISK}" || + fail "${dev}: failed to backup the partition table" + + # Modify the partition table. We do it all in one go (the order is + # important!): + # - move the GPT backup header to the end of the disk + # - delete the partition + # - recreate the partition with the new size + # - set the partition code + # - set the partition GUID + # - set the partition name + rq sgdisk_mod $wouldrun sgdisk --move-second-header "--delete=${PART}" \ + "--new=${PART}:${pt_start}:${pt_max}" \ + "--typecode=${PART}:${code}" \ + "--partition-guid=${PART}:${guid}" \ + "--change-name=${PART}:${name}" "${DISK}" && + rq pt_update $wouldrun pt_update "$DISK" "$PART" || { + RESTORE_FUNC=gpt_restore + fail "${dev}: failed to repartition" + } + + # Dry run + [ "${DRY_RUN}" -ne 0 ] && change "${change_info}" + + changed "${change_info}" +} + +kver_to_num() { + local kver="$1" maj="" min="" mic="0" + kver=${kver%%-*} + maj=${kver%%.*} + min=${kver#${maj}.} + min=${min%%.*} + mic=${kver#${maj}.${min}.} + [ "$kver" = "$mic" ] && mic=0 + _RET=$(($maj*1000*1000+$min*1000+$mic)) +} + +kver_cmp() { + local op="$2" n1="" n2="" + kver_to_num "$1" + n1="$_RET" + kver_to_num "$3" + n2="$_RET" + [ $n1 $op $n2 ] +} + +rq() { + # runquieterror(label, command) + # gobble stderr of a command unless it errors + local label="$1" ret="" efile="" + efile="$TEMP_D/$label.err" + shift; + + local rlabel="running" + [ "$1" = "would-run" ] && rlabel="would-run" && shift + + local cmd="" x="" + for x in "$@"; do + [ "${x#* }" != "$x" -o "${x#* \"}" != "$x" ] && x="'$x'" + cmd="$cmd $x" + done + cmd=${cmd# } + + debug 2 "$rlabel[$label][$_capture]" "$cmd" + [ "$rlabel" = "would-run" ] && return 0 + + if [ "${_capture}" = "erronly" ]; then + "$@" 2>"$TEMP_D/$label.err" + ret=$? + else + "$@" >"$TEMP_D/$label.err" 2>&1 + ret=$? + fi + if [ $ret -ne 0 ]; then + error "failed [$label:$ret]" "$@" + cat "$efile" 1>&2 + fi + return $ret +} + +rqe() { + local _capture="erronly" + rq "$@" +} + +verify_ptupdate() { + local input="$1" found="" reason="" kver="" + + # we can always satisfy 'off' + if [ "$input" = "off" ]; then + _RET="false"; + return 0; + fi + + if command -v partx >/dev/null 2>&1; then + local out="" ret=0 + out=$(partx --help 2>&1) + ret=$? + if [ $ret -eq 0 ]; then + echo "$out" | grep -q -- --update || { + reason="partx has no '--update' flag in usage." + found="off" + } + else + reason="'partx --help' returned $ret. assuming it is old." + found="off" + fi + else + reason="no 'partx' command" + found="off" + fi + + if [ -z "$found" ]; then + if [ "$(uname)" != "Linux" ]; then + reason="Kernel is not Linux per uname." + found="off" + fi + fi + + if [ -z "$found" ]; then + kver=$(uname -r) || debug 1 "uname -r failed!" + + if ! kver_cmp "${kver-0.0.0}" -ge 3.8.0; then + reason="Kernel '$kver' < 3.8.0." + found="off" + fi + fi + + if [ -z "$found" ]; then + _RET="true" + return 0 + fi + + case "$input" in + on) error "$reason"; return 1;; + auto) + _RET="false"; + debug 1 "partition update disabled: $reason" + return 0;; + force) + _RET="true" + error "WARNING: ptupdate forced on even though: $reason" + return 0;; + esac + error "unknown input '$input'"; + return 1; +} + +pt_update() { + local dev="$1" part="$2" update="${3:-$PT_UPDATE}" + if ! $update; then + return 0 + fi + # partx only works on block devices (do not run on file) + [ -b "$dev" ] || return 0 + partx --update "$part" "$dev" +} + +has_cmd() { + command -v "${1}" >/dev/null 2>&1 +} + +pt_update="auto" +while [ $# -ne 0 ]; do + cur=${1} + next=${2} + case "$cur" in + -h|--help) + Usage + exit 0 + ;; + --fudge) + FUDGE=${next} + shift + ;; + -N|--dry-run) + DRY_RUN=1 + ;; + -u|--update|--update=*) + if [ "${cur#--update=}" != "$cur" ]; then + next="${cur#--update=}" + else + shift + fi + case "$next" in + off|auto|force|on) pt_update=$next;; + *) fail "unknown --update option: $next";; + esac + ;; + -v|--verbose) + VERBOSITY=$(($VERBOSITY+1)) + ;; + --) + shift + break + ;; + -*) + fail "unknown option ${cur}" + ;; + *) + if [ -z "${DISK}" ]; then + DISK=${cur} + else + [ -z "${PART}" ] || fail "confused by arg ${cur}" + PART=${cur} + fi + ;; + esac + shift +done + +[ -n "${DISK}" ] || bad_Usage "must supply disk and partition-number" +[ -n "${PART}" ] || bad_Usage "must supply partition-number" + +has_cmd "sfdisk" || fail "sfdisk not found" + +[ -e "${DISK}" ] || fail "${DISK}: does not exist" + +[ "${PART#*[!0-9]}" = "${PART}" ] || fail "partition-number must be a number" + +verify_ptupdate "$pt_update" || fail +PT_UPDATE=$_RET + +debug 1 "update-partition set to $PT_UPDATE" + +mktemp_d && TEMP_D="${_RET}" || fail "failed to make temp dir" +trap cleanup EXIT + +# get the ID of the first partition to determine if it's MBR or GPT +id=$(sfdisk --id --force "${DISK}" 1 2>/dev/null) || + fail "unable to determine partition type" + +if [ "${id}" = "ee" ] ; then + has_cmd "sgdisk" || fail "GPT partition found but no sgdisk" + debug 1 "found GPT partition table (id = ${id})" + gpt_resize +else + debug 1 "found MBR partition table (id = ${id})" + mbr_resize +fi + +# vi: ts=4 noexpandtab diff --git a/disk-expand/usr/share/dracut/modules.d/50growroot/growroot-dummy.sh b/disk-expand/usr/share/dracut/modules.d/50growroot/growroot-dummy.sh new file mode 100755 index 0000000..25bed15 --- /dev/null +++ b/disk-expand/usr/share/dracut/modules.d/50growroot/growroot-dummy.sh @@ -0,0 +1,3 @@ +#!/bin/sh +# Dummy script, to make sure systemd executes the cmdline stage (which exports +# the 'root' variable required by growroot) diff --git a/disk-expand/usr/share/dracut/modules.d/50growroot/growroot.sh b/disk-expand/usr/share/dracut/modules.d/50growroot/growroot.sh new file mode 100755 index 0000000..e09c809 --- /dev/null +++ b/disk-expand/usr/share/dracut/modules.d/50growroot/growroot.sh @@ -0,0 +1,89 @@ +#!/bin/sh + +# Environment variables that this script relies upon: +# - root + +_info() { + echo "growroot: $*" +} + +_warning() { + echo "growroot Warning: $*" >&2 +} + +# This will drop us into an emergency shell +_fatal() { + echo "growroot Fatal: $*" >&2 + exit 1 +} + +_growroot() { + # Remove 'block:' prefix and find the root device + rootdev=$(readlink -f "${root#block:}") + if [ -z "${rootdev}" ] ; then + _warning "unable to find root device" + return + fi + + # If the basename of the root device (ie 'xvda1', 'sda1', 'vda') exists + # in /sys/block/ then it is a block device, not a partition + if [ -e "/sys/block/${rootdev##*/}" ] ; then + _info "${rootdev} is not a partition" + return + fi + + # Check if the root device is a partition (name ends with a digit) + if [ "${rootdev%[0-9]}" = "${rootdev}" ] ; then + _warning "${rootdev} is not a partition" + return + fi + + # Remove all numbers from the end of rootdev to get the rootdisk and + # partition number + rootdisk=${rootdev} + while [ "${rootdisk%[0-9]}" != "${rootdisk}" ] ; do + rootdisk=${rootdisk%[0-9]} + done + partnum=${rootdev#${rootdisk}} + + # Check if we need to strip a trailing 'p' from the rootdisk name (for + # device names like /dev/mmcblk0p) + tmp=${rootdisk%[0-9]p} + if [ "${#tmp}" != "${#rootdisk}" ] ; then + rootdisk=${rootdisk%p} + fi + + # Do a growpart dry run and exit if it fails or doesn't have anything + # to do + if ! out=$(growpart --dry-run "${rootdisk}" "${partnum}") ; then + _info "${out}" + return + fi + + # Wait for any of the initial udev events to finish otherwise growpart + # might fail + udevadm settle --timeout=30 + + # Resize the root partition + if out=$(growpart --update off "${rootdisk}" "${partnum}" 2>&1) ; then + _info "${out}" + else + _warning "${out}" + _warning "growpart failed" + fi + + # Wait for the partition re-read events to complete so that the root + # partition is available for mounting + udevadm settle --timeout=30 + + # Add the root partition if it didn't come back on its own + if ! [ -e "${rootdev}" ] ; then + partx --add --nr "${partnum}" "${rootdisk}" || \ + _warning "failed to add root device ${rootdev}" + udevadm settle --timeout=30 + fi +} + +_growroot + +# vi: ts=4 noexpandtab diff --git a/disk-expand/usr/share/dracut/modules.d/50growroot/install b/disk-expand/usr/share/dracut/modules.d/50growroot/install new file mode 100755 index 0000000..70df2a8 --- /dev/null +++ b/disk-expand/usr/share/dracut/modules.d/50growroot/install @@ -0,0 +1,12 @@ +#!/bin/bash +# Dracut install script for EL6 + +inst_hook cmdline 99 "$moddir/growroot-dummy.sh" +inst_hook pre-mount 99 "$moddir/growroot.sh" + +dracut_install awk +dracut_install growpart +dracut_install partx +dracut_install readlink +dracut_install sfdisk +dracut_install sgdisk -- cgit v1.2.1