From 8a4ddfc919d5569c68489cf53d9cf5abc94c410c Mon Sep 17 00:00:00 2001 From: srs5694 Date: Sun, 21 Mar 2010 19:05:49 -0400 Subject: Bring git up to 0.6.6 release version. --- gdisk.8 | 44 +++++++++++++++++++++----------------------- 1 file changed, 21 insertions(+), 23 deletions(-) (limited to 'gdisk.8') diff --git a/gdisk.8 b/gdisk.8 index ea4fcaf..ddcec5a 100644 --- a/gdisk.8 +++ b/gdisk.8 @@ -1,6 +1,6 @@ .\" Copyright 2010 Roderick W. Smith (rodsmith@rodsbooks.com) .\" May be distributed under the GNU General Public License -.TH "GDISK" "8" "0.6.5" "Roderick W. Smith" "GPT fdisk Manual" +.TH "GDISK" "8" "0.6.6" "Roderick W. Smith" "GPT fdisk Manual" .SH "NAME" gdisk \- Interactive GUID partition table (GPT) manipulator .SH "SYNOPSIS" @@ -112,9 +112,9 @@ If Windows is to boot from a GPT disk, a partition of type \fIMicrosoft Reserved\fR (\fBgdisk\fR internal code 0x0C01) is recommended. This partition should be about 128 MiB in size. It ordinarily follows the EFI System Partition and immediately -precedes the Windows data partitions. (Note that GNU Parted creates all -FAT partitions as this type, which actually makes the partition unusable -for normal file storage in both Windows and Mac OS X.) +precedes the Windows data partitions. (Note that old versions of GNU Parted +create all FAT partitions as this type, which actually makes the partition +unusable for normal file storage in both Windows and Mac OS X.) .TP .B * @@ -208,7 +208,8 @@ the end of the same block for the end sector. .TP .B o Clear out all partition data. This includes GPT header data, -all partition definitions, and the protective MBR. +all partition definitions, and the protective MBR. The sector alignment +is reset to the default (2048 sectors, or 1MB). .TP .B p @@ -422,11 +423,8 @@ not in \fBgdisk\fR) or sheer incredible coincidence. .TP .B d -Display the number of logical sectors per physical sector. This value -determines the sector alignment that GPT fdisk enforces. See the -description of the 'l' option for more details. Note that this value is -only auto\-detected on Linux with a 2.6.32 kernel or later; on other -platforms, it defaults to 8. +Display the sector alignment value. See the +description of the 'l' option for more details. .TP .B e @@ -448,17 +446,15 @@ option on the main menu. .TP .B l -Change the number of logical sectors per physical sector. Prior to December -of 2009, most hard disks used 512\-byte physical sectors. Starting in -December of 2009, disk manufacturers began transitioning to disks with -larger physical sectors, but their firmware translated to 512\-byte logical -sectors to maintain compatibility with older OSes. If partitions begin -mid\-physical\-sector, though, performance can suffer on such drives, since -important filesystem data structures can span physical sectors on the disk. -To minimize such problems, GPT fdisk aligns the start of partitions on the -boundary of presumed physical sectors. You can set the number of logical -sectors per physical sector with this option. The default is 1 on disks -smaller than 596 GiB and 8 on larger disks with 512\-byte logical sectors. +Change the sector alignment value. Disks with more logical sectors per +physical sectors (such as some Western Digital models introduced in +December of 2009) and some RAID configurations can suffer performance +problems if partitions are not aligned properly for their internal data +structures. On new disks, GPT fdisk attempts to align partitions on +2048\-sector (1MiB) boundaries by default, which optimizes performance +for both of these disk types. On pre\-partitioned disks, GPT fdisk +attempts to identify the alignment value used on that disk. In either +case, it can be changed by using this option. .TP .B m @@ -535,14 +531,16 @@ entering data. When only one option is possible, \fBgdisk\fR usually bypasses the prompt entirely. .SH "BUGS" -As of March 2010 (version 0.6.5), \fBgdisk\fR +As of March 2010 (version 0.6.6), \fBgdisk\fR should be considered beta software. Known bugs and limitations include: .TP .B * The program compiles correctly only on Linux, FreeBSD, Mac OS X, and Windows. Linux versions for x86\-64 (64\-bit), x86 (32\-bit), and PowerPC (32\-bit) have been -tested, with the x86\-64 version having seen the most testing. +tested, with the x86\-64 version having seen the most testing. Under FreeBSD, +32\-bit (x86) and 64\-bit (x86\-64) versions have been tested. Only 32\-bit +versions for Mac OS X and Windows have been tested. .TP .B * -- cgit v1.2.1