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contrib: dracut: zfs-snapshot-bootfs: exit status fix 

When the zfs-snapshot-bootfs service attempts to create a snapshot
that already exists, the exit status of the command is non-zero and
the service reports failed to the systemd service manager. This is a
common occurrence if bootfs.snapshot is left set on the kernel command
line and it should not be considered a failure.

This service was originally set to ignore this error by prefixing
the command with - on the ExecStart line, but the leading - appears
to have been dropped in #13359.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com>
Closes #13769
This commit is contained in:
gregory-lee-bartholomew 2022-08-12 16:28:15 -05:00 committed by Brian Behlendorf
parent 533779f5f2
commit 979fd5a434
1 changed files with 1 additions and 1 deletions
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contrib/dracut/90zfs/zfs-snapshot-bootfs.service.in
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@ -8,5 +8,5 @@ ConditionKernelCommandLine=bootfs.snapshot
[Service]
Type=oneshot
ExecStart=/bin/sh -c '. /lib/dracut-zfs-lib.sh; decode_root_args || exit; [ "$root" = "zfs:AUTO" ] && root="$BOOTFS" SNAPNAME="$(getarg bootfs.snapshot)"; exec @sbindir@/zfs snapshot "$root@${SNAPNAME:-%v}"'
-ExecStart=/bin/sh -c '. /lib/dracut-zfs-lib.sh; decode_root_args || exit; [ "$root" = "zfs:AUTO" ] && root="$BOOTFS" SNAPNAME="$(getarg bootfs.snapshot)"; exec @sbindir@/zfs snapshot "$root@${SNAPNAME:-%v}"'
RemainAfterExit=yes