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zfs/contrib/dracut/90zfs/zfs-snapshot-bootfs.service.in

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Add bootfs.snapshot and bootfs.rollback kernel parameters Unlike other filesystems, snapshots and rollbacks of bootfs need to be done from a rescue environment. This patch makes it possible to snap- shot or rollback the bootfs simply by specifying bootfs.snapshot or bootfs.rollback on the kernel command line. The operation will be performed by dracut just before bootfs is mounted. Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com> Closes #10198
2020-05-30 04:16:08 +00:00
[Unit]
Description=Snapshot bootfs just before it is mounted
Requisite=zfs-import.target
contrib: dracut: zfs-{rollback,snapshot}-bootfs: order after key loading This fixes at least one race I got with an encrypted root Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #13291
2022-04-04 22:19:38 +00:00
After=zfs-import.target dracut-pre-mount.service
Add bootfs.snapshot and bootfs.rollback kernel parameters Unlike other filesystems, snapshots and rollbacks of bootfs need to be done from a rescue environment. This patch makes it possible to snap- shot or rollback the bootfs simply by specifying bootfs.snapshot or bootfs.rollback on the kernel command line. The operation will be performed by dracut just before bootfs is mounted. Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com> Closes #10198
2020-05-30 04:16:08 +00:00
Before=dracut-mount.service
DefaultDependencies=no
ConditionKernelCommandLine=bootfs.snapshot
[Service]
Type=oneshot
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
2022-08-12 21:28:15 +00:00
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}"'
Add bootfs.snapshot and bootfs.rollback kernel parameters Unlike other filesystems, snapshots and rollbacks of bootfs need to be done from a rescue environment. This patch makes it possible to snap- shot or rollback the bootfs simply by specifying bootfs.snapshot or bootfs.rollback on the kernel command line. The operation will be performed by dracut just before bootfs is mounted. Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com> Closes #10198
2020-05-30 04:16:08 +00:00
RemainAfterExit=yes