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zfs/contrib/dracut/90zfs/zfs-rollback-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=Rollback 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 Upstream-commit: 6ebdb0b20de444f69404c265352a27e1b4e49b93 Upstream-commit: b8d9679f3644c813f7aa6db5b9c978b88758049a 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 zfs-snapshot-bootfs.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.rollback
[Service]
Type=oneshot
contrib: dracut: zfs-{rollback,snapshot}-bootfs: explicit snapname fix Due to a missing semicolon on the ExecStart line, it wasn't possible to specify the snapshot name on the bootfs.{rollback,snapshot} kernel parameters if the boot dataset name was obtained from the root=zfs:... kernel parameter. Reviewed-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregory Bartholomew <gregory.lee.bartholomew@gmail.com> Closes #13585
2022-06-29 23:56:04 +00:00
ExecStart=/bin/sh -c '. /lib/dracut-zfs-lib.sh; decode_root_args || exit; [ "$root" = "zfs:AUTO" ] && root="$BOOTFS"; SNAPNAME="$(getarg bootfs.rollback)"; exec @sbindir@/zfs rollback -Rf "$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