[Unit] Description=dm-era for /var DefaultDependencies=no StartLimitInterval=0 Before=local-fs-pre.target DefaultDependencies=no Conflicts=shutdown.target [Service] Type=oneshot ExecStart=/sbin/modprobe dm_era ; /sbin/dmsetup create md2p4_era --table "0 3625547743 era /dev/md2p3 /dev/md2p4 1024" [Install] WantedBy=sysinit.target