[systemd-devel] boot fails with LVMs-on-RAID; systemd "Timed out" and "Dependency failed" errors ?

[h15234 at mailas.com]

I'm working on a machine running systemd v210 (Opensuse 13.2)

Its disks are all on RAID.

/boot is on RAID1 on /dev/md126

The remaining partitions are on LVM-on-RAID10

The LVs are

	LV_ROOT       VG0 -wi-ao---  20.00g                                             
	LV_SWAP       VG0 -wi-ao---   8.00g                                             
	LV_HOME       VG0 -wi-ao--- 100.00g                                             
	LV_VAR        VG0 -wi-ao---   1.00g                                             

The system fails to boot, dropping to a maintenance mode prompt.

Simply hitting Ctrl-D to continue, finishes booting the system.

After boot, checking

	journalctl -b | egrep -i "Timed out|result=dependency" | egrep -i "dev|mount"
		Feb 20 08:16:15 ender systemd[1]: Job dev-VG0-LV_HOME.device/start timed out.
		Feb 20 08:16:15 ender systemd[1]: Timed out waiting for device dev-VG0-LV_HOME.device.
		Feb 20 08:16:15 ender systemd[1]: Job systemd-fsck at dev-VG0-LV_HOME.service/start finished, result=dependency
		Feb 20 08:16:15 ender systemd[1]: Dependency failed for File System Check on /dev/VG0/LV_HOME.
		Feb 20 08:16:15 ender systemd[1]: Job dev-VG0-LV_VAR.device/start timed out.
		Feb 20 08:16:15 ender systemd[1]: Timed out waiting for device dev-VG0-LV_VAR.device.
		Feb 20 08:16:15 ender systemd[1]: Job systemd-fsck at dev-VG0-LV_VAR.service/start finished, result=dependency
		Feb 20 08:16:15 ender systemd[1]: Dependency failed for File System Check on /dev/VG0/LV_VAR.
		Feb 20 08:16:15 ender systemd[1]: Job dev-disk-by\x2did-dm\x2dname\x2dVG0\x2dLV_HOME.device/start timed out.
		Feb 20 08:16:15 ender systemd[1]: Timed out waiting for device dev-disk-by\x2did-dm\x2dname\x2dVG0\x2dLV_HOME.device.

This is reported ON the same system.  I.e., all the LVs are correctly mounted and fully functional.

Why are these time-outs & dependency-fails occurring?  What do I need to change/fix to make sure it does not happen, and avoid getting dropped into emergency mode on boot?

hanlon