From: Hannes Reinecke <hare@xxxxxxx> As multipath now relies on udev for device enumeration it needs to be started after udev trigger has finished sending all events. Otherwise the daemon will not find any devices during startup (as udev trigger hasn't been called yet and the udev database is empty). But after switchover from the initrd there will already be some multipath device-mapper tables, for which the daemon cannot find any device. Consequently the daemon will be removing these tables, only to recreate them later on once udev trigger has run. This induces a short window during which the device mapper devices won't be present, causing systemd to umount devices or drop into emergency mode. Signed-off-by: Hannes Reinecke <hare@xxxxxxxx> --- multipathd/multipathd.service | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/multipathd/multipathd.service b/multipathd/multipathd.service index be13138c..126012b8 100644 --- a/multipathd/multipathd.service +++ b/multipathd/multipathd.service @@ -1,8 +1,9 @@ [Unit] Description=Device-Mapper Multipath Device Controller +Wants=systemd-udev-trigger.service systemd-udev-settle.service Before=iscsi.service iscsid.service lvm2-lvmetad.service lvm2-activation-early.service -Before=local-fs-pre.target systemd-udev-trigger.service blk-availability.service -After=multipathd.socket systemd-udevd.service +Before=local-fs-pre.target blk-availability.service +After=multipathd.socket systemd-udev-trigger.service systemd-udev-settle.service DefaultDependencies=no Conflicts=shutdown.target -- 2.11.0 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
