Public bug reported:
I've configured a Software RAID5 using three hard drives and mdadm. The
RAID works, I can access the data, however for some reason it does not
"assemble" on boot, and the automount subsequently fails with and error
message offering me to Ignore or Skip the mounting process. Turns out
that after booting, the device /dev/md0 does not exist on my system.
I've configured /etc/mdadm/mdadm.conf (attached), ran "mdadm -As
/dev/md0" as suggested by various guides around the web and added
raid456 to /etc/modules in the hopes that this would somehow make it
work but to no avail.
In my /etc/fstab I'm not refering to the RAID as /dev/md0, but instead
use the UUID of md0.
My workaround currently is this:
Once I login, I can issue
# mdadm --assemble --scan
and it creates my /dev/md0 which is then accessible and works without a
problem.
** Affects: mdadm (Ubuntu)
Importance: Undecided
Status: New
** Tags: automount mdadm raid software
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https://bugs.launchpad.net/bugs/940050
Title:
software raid doesn't assemble before mount on boot
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