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Verify zfs module loaded before starting services

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This is a minor change to the systemd service templates that verifies
the zfs kernel module is loaded by the kernel prior to attempting to
import any zpool.

The services check for the presence of /sys/module/zfs which indicates
the zfs is module is loaded. This uses the systemd built-in check
ConditionPathIsDirectory.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Thode <prometheanfire@gentoo.org>
Signed-off-by: Jonathon Fernyhough <jonathon.fernyhough@york.ac.uk>
Closes #10663
This commit is contained in:
Jonathon 2020-08-02 00:13:15 +00:00 committed by Tony Hutter
parent 10c7a12f3b
commit 79291065fc
3 changed files with 3 additions and 3 deletions
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2
etc/systemd/system/zfs-import-cache.service.in
View File

@ -9,11 +9,11 @@ After=multipathd.target
After=systemd-remount-fs.service After=systemd-remount-fs.service
Before=zfs-import.target Before=zfs-import.target
ConditionPathExists=@sysconfdir@/zfs/zpool.cache ConditionPathExists=@sysconfdir@/zfs/zpool.cache
ConditionPathIsDirectory=/sys/module/zfs
[Service] [Service]
Type=oneshot Type=oneshot
RemainAfterExit=yes RemainAfterExit=yes
ExecCondition=/usr/bin/grep -q "^zfs " /proc/modules
ExecStart=@sbindir@/zpool import -c @sysconfdir@/zfs/zpool.cache -aN ExecStart=@sbindir@/zpool import -c @sysconfdir@/zfs/zpool.cache -aN
[Install] [Install]

2
etc/systemd/system/zfs-import-scan.service.in
View File

@ -8,11 +8,11 @@ After=cryptsetup.target
After=multipathd.target After=multipathd.target
Before=zfs-import.target Before=zfs-import.target
ConditionPathExists=!@sysconfdir@/zfs/zpool.cache ConditionPathExists=!@sysconfdir@/zfs/zpool.cache
ConditionPathIsDirectory=/sys/module/zfs
[Service] [Service]
Type=oneshot Type=oneshot
RemainAfterExit=yes RemainAfterExit=yes
ExecCondition=/usr/bin/grep -q "^zfs " /proc/modules
ExecStart=@sbindir@/zpool import -aN -o cachefile=none ExecStart=@sbindir@/zpool import -aN -o cachefile=none
[Install] [Install]

2
etc/systemd/system/zfs-mount.service.in
View File

@ -7,11 +7,11 @@ After=zfs-import.target
After=systemd-remount-fs.service After=systemd-remount-fs.service
Before=local-fs.target Before=local-fs.target
Before=systemd-random-seed.service Before=systemd-random-seed.service
ConditionPathIsDirectory=/sys/module/zfs
[Service] [Service]
Type=oneshot Type=oneshot
RemainAfterExit=yes RemainAfterExit=yes
ExecCondition=/usr/bin/grep -q "^zfs " /proc/modules
ExecStart=@sbindir@/zfs mount -a ExecStart=@sbindir@/zfs mount -a
[Install] [Install]