I have the same issue.
The problem is that the /usr/share/initramfs-tools/scripts/mdadm-functions
Is called before all drives has been initialized.
I have 6 drives in RAID array. 2 of them are onboard SATA and 4 are on mpt2sas
(SAS2008) card.
Apparantly mdadm tries to initialize the array before all 6 drives have
been attached to the system
If i edit mdadm-functions to this everything works (ugly fix):
degraded_arrays()
{
sleep 15
>---mdadm --misc --scan --detail --test >/dev/null 2>&1
>---return $((! $?))
}
This bug was introduced for when i upgraded from 10.04 LTS to 12.04.1
LTS Today!
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https://bugs.launchpad.net/bugs/990913
Title:
RAID goes into degrade mode on every boot 12.04 LTS server
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