Article ID: 118133, created on Oct 23, 2013, last review on May 10, 2014

  • Applies to:
  • Virtuozzo
  • Virtuozzo containers for Linux
  • Virtuozzo hypervisor


  1. /vz partition cannot be mounted:

    # mount /dev/vg0/vz /vz
    mount: wrong fs type, bad option, bad superblock on /dev/vg0/vz,
           missing codepage or other error
           In some cases useful info is found in syslog - try
           dmesg | tail  or so
  2. Similar messages can be seen in dmesg output:

    # dmesg | tail
    [   25.723251] RPC: Registered named UNIX socket transport module.
    [   25.723255] RPC: Registered udp transport module.
    [   25.723258] RPC: Registered tcp transport module.
    [   25.723262] RPC: Registered tcp NFSv4.1 backchannel transport module.
    [   25.741241] FS-Cache: Loaded
    [   25.773668] Registering the id_resolver key type
    [   25.774454] FS-Cache: Netfs 'nfs' registered for caching
    [   25.848654] VZFS: Virtuozzo file system version 005.004
    [  476.013751] EXT3-fs error (device dm-3): ext3_check_descriptors: Block bitmap for group 128 not in group (block 33188)!
    [  476.014241] EXT3-fs (dm-3): error: group descriptors corrupted


File system on the /vz partition is corrupted.


Run fsck:

    # fsck -y /dev/vg0/vz

after the check is finished, mount the partition:

    # mount /dev/vg0/vz /vz

Note: The path to the device, associated with the /vz partition, may differ for your installation.

Search Words

missing codepage or other error


group descriptors corrupted

wrong fs type, bad option, bad superblock


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