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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-07-21 03:26:13 +0200 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-08-10 00:05:47 +0200 |
| commit | 7a05926fbe6ed92e60e0afc9857ced91a532f791 (patch) | |
| tree | 60bdda95a2e2ed931d78704a2c34a72c1d5769cd /man/systemd-dissect.xml | |
| parent | Merge pull request #28734 from loongarch64/dev-wu-main (diff) | |
| download | systemd-7a05926fbe6ed92e60e0afc9857ced91a532f791.tar.xz systemd-7a05926fbe6ed92e60e0afc9857ced91a532f791.zip | |
udev: re-introduce symlinks for loopback block device
But the directories are changed from /dev/loop/by-ref/ -> /dev/disk/by-loop-ref/
and /dev/loop/by-inode/ -> /dev/disk/by-loop-inode/.
As /dev/loop/ is used by losetup command for other purpose.
See issue #28475.
This effectively reverts commits 9915cc60868c77e7e8cecb669ddb90516dffc7df,
5022fab15fc16204d163883ca818fd6092dc919c, and
c0d998248e10e1dcf18108fdbb70f259acd452eb.
Diffstat (limited to 'man/systemd-dissect.xml')
| -rw-r--r-- | man/systemd-dissect.xml | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/man/systemd-dissect.xml b/man/systemd-dissect.xml index 9a3ed6ce7b..27c5d3c7a8 100644 --- a/man/systemd-dissect.xml +++ b/man/systemd-dissect.xml @@ -413,7 +413,14 @@ <literal>.lo_file_name</literal> field for the block device. Note this is distinct from the <filename>/sys/class/block/loopX/loop/backing_file</filename> attribute file that always reports a path referring to the actual backing file. The latter is subject to mount namespace translation, the - former is not.</para></listitem> + former is not.</para> + + <para>This setting is particularly useful in combination with the <option>--attach</option> command, + as it allows later referencing the allocated loop device via + <filename>/dev/disk/by-loop-ref/…</filename> symlinks. Example: first, set up the loopback device + via <command>systemd-dissect attach --loop-ref=quux foo.raw</command>, and then reference it in a + command via the specified filename: <command>cfdisk /dev/disk/by-loop-ref/quux</command>. + </para></listitem> </varlistentry> <varlistentry> |