[Unit] Description=Rollback bootfs just before it is mounted Requisite=zfs-import.target After=zfs-import.target dracut-pre-mount.service zfs-snapshot-bootfs.service Before=dracut-mount.service DefaultDependencies=no ConditionKernelCommandLine=bootfs.rollback [Service] Type=oneshot 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}"' RemainAfterExit=yes