Article ID: 125548, created on May 18, 2015, last review on Jun 17, 2016

  • Applies to:
  • Virtuozzo 6.0
  • Virtuozzo containers for Windows 6.0
  • Virtuozzo containers for Windows 4.6


After successful Windows container to virtual machine migration additional disk, attached to the source container as a loopback drive, shown as empty.

Drive was attached with explicitly specified disktype:

 C:\> vzctl set 101 --drive d: --disktype compact


C:\> vzctl set 101 --drive d: --disktype plain

As a result, source container has lpbktype option in its configuration file:

C:\> select-string "DRIVE_D" C:\vz\Conf\101.conf



Additional loopback drive is not being transferred during c2v migration, if disk type was defined explicitly. This issue was recognized as a product bug with internal ID #PCWIN-22344.


The bug was fixed in Virtuozzo containers for Windows 6.0 update 23 and Virtuozzo containers for Windows 4.6 update 85.

Install pending updates on the source server, reboot it, and restart the migration.

Search Words

empty disk

Copy partition failed for container




c2v migration

c62e8726973f80975db0531f1ed5c6a2 2897d76d56d2010f4e3a28f864d69223 0dd5b9380c7d4884d77587f3eb0fa8ef 965b49118115a610e93635d21c5694a8 d02f9caf3e11b191a38179103495106f 6f8e3eda12803cf88a9587e9782c9ed6 6c20476fe6c3408461ce38cbcab6d03b

Email subscription for changes to this article
Save as PDF