Bug#749062: mdadm: add "containers" to emergency config file

[Miquel van Smoorenburg]

Package: mdadm
Version: 3.3-2
Severity: normal

If no mdadm.conf file is found in initramfs, the local-top mdadm script 
will create one on the fly like this:

   echo DEVICE partitions > $CONFIG
   $MDADM --examine --scan >> $CONFIG

However, this config will fail to assemble Intel RAID (imsm) arrays, 
since those are "containers" and that needs to be explicitly added to 
the DEVICE line.

Also, from the manpage:

               If  no DEVICE line is present, then "DEVICE partitions 
contain-
               ers" is assumed.

So please add "containers" to the DEVICE line or just leave out the 
DEVICE line completely.

Thanks

Mike.