[bug #26720] Multiple metadata areas created for large LVM volumes are not supported

[Andrew Oakley]

URL:
  <http://savannah.gnu.org/bugs/?26720>

                 Summary: Multiple metadata areas created for large LVM
volumes are not supported
                 Project: GNU GRUB
            Submitted by: adoakley
            Submitted on: Tue 02 Jun 2009 01:59:57 AM GMT
                Category: Disk &amp; Partition
                Severity: Major
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: svn trunk
         Reproducibility: Every Time
         Planned Release: 

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Details:

GRUB fails (silently) when scanning LVM volumes that have multiple metadata
areas (which is the default for "large" volumes).  GRUB checks that there is
only a single metadata area, and rejects the volumes with multiple copies.  It
is possible that simply removing the check is the right thing to do.  

You can set the number of LVM metadata areas using the --metadatacopies
argument to pvcreate.  It looks like 0 metadata copies would also break GRUB,
but that is less likely to happen (it's never the default).  

The offending code is at grub2/disk/lvm.c:276 revision 2238.  




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