Article ID: 124213, created on Jan 17, 2015, last review on Jan 29, 2015

  • Applies to:
  • Virtuozzo

Information

Generally it is possible to format filesystem inside VM to BTRFS, however such disks cannot be managed. Tools for managing disks (prl_disk_tool) do not support this filesystem.

So, there is a list of limitations:

  1. Resize of VMs using BTRFS is not supported:

    # prl_disk_tool resize --hdd /var/parallels/CentOS7.pvm/CentOS7-0.hdd/ --size 150G --resize_partition
    Operation progress 75 %Resizing failed. Unable to resize the last volume. The file system of this volume might be damaged or not supported.
    
  2. VMs with BTRFS filesystem cannot be mounted via prlctl mount.

  3. Linux physical servers with BTRFS cannot be migrated into Parallels VM

Resolution

It is better to avoid using BTRFS inside Virtual Machines.

Search Words

BTRFS

The file system of this volume might be damaged or not supported

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