[Bug 1033112] Re: error: unknown LVM metadata header

[Bob Smith]

** Package changed: ubuntu => grub (Ubuntu)

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Title:
  error: unknown LVM metadata header

Status in “grub” package in Ubuntu:
  New

Bug description:
  I Upgraded to 12.10, and when grub ran through the upgrade it gave me
  these errors:

    root at secure:/usr/share/grub# update-grub
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    Generating grub.cfg ...
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    error: unknown LVM metadata header.
    ...

  I haven't rebooted yet, scared that if I do, the pc won't boot
  correctly.. how do I fix this?

  
  WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

  
  WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.

  Disk /dev/md0 doesn't contain a valid partition table
  Disk /dev/mapper/ssdraid-root doesn't contain a valid partition table
  Disk /dev/mapper/ssdraid-swap doesn't contain a valid partition table

  Disk /dev/sda: 64.0 GB, 64023257088 bytes
  255 heads, 63 sectors/track, 7783 cylinders, total 125045424 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x00000000

     Device Boot      Start         End      Blocks   Id  System
  /dev/sda1               1   125045423    62522711+  ee  GPT

  Disk /dev/sdb: 64.0 GB, 64023257088 bytes
  255 heads, 63 sectors/track, 7783 cylinders, total 125045424 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x00000000

     Device Boot      Start         End      Blocks   Id  System
  /dev/sdb1               1   125045423    62522711+  ee  GPT

  Disk /dev/md0: 60.0 GB, 59998877696 bytes
  2 heads, 4 sectors/track, 14648163 cylinders, total 117185308 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x00000000

  
  Disk /dev/mapper/ssdraid-root: 58.0 GB, 57998835712 bytes
  255 heads, 63 sectors/track, 7051 cylinders, total 113278976 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x00000000

  
  Disk /dev/mapper/ssdraid-swap: 1996 MB, 1996488704 bytes
  255 heads, 63 sectors/track, 242 cylinders, total 3899392 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x00000000

  root at secure:/usr/share/grub# df
  Filesystem               1K-blocks    Used Available Use% Mounted on
  /dev/mapper/ssdraid-root  56532304 4377872  49322460   9% /
  udev                       8194832      12   8194820   1% /dev
  tmpfs                      3281632     288   3281344   1% /run
  none                          5120       0      5120   0% /run/lock
  none                       8204080       0   8204080   0% /run/shm

  
  mdadm: No md superblock detected on /dev/dm-1.
  mdadm: No md superblock detected on /dev/dm-0.
  mdadm: No md superblock detected on /dev/md/0.
  mdadm: No md superblock detected on /dev/sda1.
  /dev/sdb1:
            Magic : a92b4efc
          Version : 1.2
      Feature Map : 0x0
       Array UUID : f3758d48:a82098d6:4620e289:541cc15e
             Name : secure:0  (local to host secure)
    Creation Time : Sat Jul 21 04:34:41 2012
       Raid Level : raid1
     Raid Devices : 2

   Avail Dev Size : 117185453 (55.88 GiB 60.00 GB)
       Array Size : 117185308 (55.88 GiB 60.00 GB)
    Used Dev Size : 117185308 (55.88 GiB 60.00 GB)
      Data Offset : 2048 sectors
     Super Offset : 8 sectors
            State : active
      Device UUID : 0275e12c:3d14afa5:cd6a77fa:f79b0989

      Update Time : Sat Aug  4 00:15:10 2012
         Checksum : 5a051caa - correct
           Events : 37

    Device Role : Active device 1
     Array State : AA ('A' == active, '.' == missing)
  /dev/sdb:
     MBR Magic : aa55
  Partition[0] :    125045423 sectors at            1 (type ee)
  /dev/sda2:
            Magic : a92b4efc
          Version : 1.2
      Feature Map : 0x0
       Array UUID : f3758d48:a82098d6:4620e289:541cc15e
             Name : secure:0  (local to host secure)
    Creation Time : Sat Jul 21 04:34:41 2012
       Raid Level : raid1
     Raid Devices : 2

   Avail Dev Size : 117185453 (55.88 GiB 60.00 GB)
       Array Size : 117185308 (55.88 GiB 60.00 GB)
    Used Dev Size : 117185308 (55.88 GiB 60.00 GB)
      Data Offset : 2048 sectors
     Super Offset : 8 sectors
            State : active
      Device UUID : 5677de18:cb8771d2:0011b22e:0d72e576

      Update Time : Sat Aug  4 00:15:10 2012
         Checksum : 94db0ed3 - correct
           Events : 37

  
     Device Role : Active device 0
     Array State : AA ('A' == active, '.' == missing)
  /dev/sda:
     MBR Magic : aa55
  Partition[0] :    125045423 sectors at            1 (type ee)

  
  Logs: http://pastie.org/4389403

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