[bug #33496] GRUB should support mdadm array with 1.2 metadata

[Jean-Baptiste Onofré]

URL:
  <http://savannah.gnu.org/bugs/?33496>

                 Summary: GRUB should support mdadm array with 1.2 metadata
                 Project: GNU GRUB
            Submitted by: jbonofre
            Submitted on: Wed 08 Jun 2011 12:31:19 PM GMT
                Category: None
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: other
         Reproducibility: Every Time
         Planned Release: None

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Details:

I use GRUB 1.99~rc1-13 (tested in Debian Testing and Fedora 14).

Currently, if I create a mdadm array with 0.90 metadata containing the /boot:

mdadm --create /dev/md0 --level=raid10 --raid-devices=2 --metadata=0.90
/dev/sda1 /dev/sdb1
mkfs.ext4 /dev/md0

and load raid and mdraid modules in GRUB, it works without problem.
In GRUB command line, "ls" command shows me (md0).

But, if I create my array with 1.2 metadata:

mdadm --create /dev/md0 --level=raid10 --raid-devices=2 --metadata=1.2
/dev/sda1 /dev/sdb1

In that case, grub "ls" command doesn't show the (md0).

It looks that GRUB doesn't support mdadm 1.2 metadata.




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