Bug#782793: systemd: ext4 filesystem on lvm on raid causes boot to enter emergency shell

[Michael Biebl]

Am 18.04.2015 um 00:36 schrieb Rick Thomas:
> 
> On Apr 17, 2015, at 3:17 PM, Michael Biebl <biebl at debian.org> wrote:
> 
>> Am 17.04.2015 um 23:43 schrieb Rick Thomas:
>>> Package: systemd
>>> Version: 215-16
>>> Severity: important
>>>
>>> When /etc/fstab has an ext4 filesystem on a logical volume which is itself
>>> on a software raid, the system times out waiting for (I think!) fsck on that filesystem.
>>> This causes the boot to drop into the emergency shell.
>>> If I just type "^D" and allow the boot to continue, the filesystem is mounted but
>>> never fsck-ed.
>>>
>>> systemd journal of boot is attached.
>>> /etc/fstab is attached.
>>> /etc/modules is attached
>>> /etc/modprobe.d/mdadm.conf is attached
>>> /etc/mdadm/mdadm.conf is attached
>>>
>>> The filesystem in question is "/backup" which is on logical-volume "vg1-backup", which is on RAID device "/dev/md127"
>>
>> When you are dropped into emergency shell, can you get the following data
>> ls -al /dev/disk/by-label
>> udevadm info -e
>> mdadm --info /dev/md127
>> lvscan
>> pvscan
>> vgscan
> 

Thanks for the data.
Looks like an lvm issue to me:

root at cube:~# lvscan
  inactive          '/dev/vg1/backup' [87.29 GiB] inherit

and as a result, /dev/disk/by-label/BACKUP is missing.

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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