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| author | Lennart Poettering <lennart@poettering.net> | 2015-11-16 15:25:42 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-11-16 15:25:42 +0100 |
| commit | 2904e949f23aeb17b7e21a2a0f8c43f959a07f98 (patch) | |
| tree | 741b948bb870113c5bdd21783cc3948555b609d7 /man/tmpfiles.d.xml | |
| parent | ab32771aa0c2c2ab70248e7e0a4be92fd73512ad (diff) | |
| download | systemd-2904e949f23aeb17b7e21a2a0f8c43f959a07f98.tar.gz | |
tmpfiles: create subvolumes for "v", "q", and "Q" only if / is a subvolume
It's not a good idea to create subvolumes for parts of the OS tree (such
as /home, or /var) if the root directory is not a subvolume too. We
shouldn't assume control of "heavier" objects such as subvolumes, if the
originating object (the root directory) is a "light-weight" object, i.e.
a plain directory.
Effectively this means that chroot() environments that are run on a
plain directory do not have to deal with problems around systemd
creating subvolumes that cannot be removed with a simple "rm" anymore.
However, if the chroot manager creates a proper subvolume for such an
environment it will also get further subvolumes placed in there, under
the assumption that the manager understands the concept of subvolumes in
that case.
Diffstat (limited to 'man/tmpfiles.d.xml')
| -rw-r--r-- | man/tmpfiles.d.xml | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml index 3f6128cb5b..5bf1f2956b 100644 --- a/man/tmpfiles.d.xml +++ b/man/tmpfiles.d.xml @@ -169,13 +169,15 @@ <varlistentry> <term><varname>v</varname></term> <listitem><para>Create a subvolume if the path does not - exist yet and the file system supports this - (btrfs). Otherwise, create a normal directory, in the same - way as <varname>d</varname>. A subvolume created with this - line type is not assigned to any higher-level quota - group. For that, use <varname>q</varname> or - <varname>Q</varname>, which allow creating simple quota group - hierarchies, see below.</para></listitem> + exist yet, the file system supports subvolumes (btrfs), and + the system itself is installed into a subvolume + (specifically: the root directory <filename>/</filename> is + itself a subvolume). Otherwise, create a normal directory, in + the same way as <varname>d</varname>. A subvolume created + with this line type is not assigned to any higher-level + quota group. For that, use <varname>q</varname> or + <varname>Q</varname>, which allow creating simple quota + group hierarchies, see below.</para></listitem> </varlistentry> <varlistentry> |