Version 2.25
Detect QCOW2 formatted direct attached RAW Volumes (#264):
Some solutions such as OpenNebula will use direct attached LVM volumes in
virtual machines. These LVM volumes were treated like a RAW device, but
allow all required operations for full/incremental backup, as they are qcow2
formatted.
Changes introduced in v2.18 would exclude these devices from backup even if
--raw option is passed. Now during disk detection, use the disk format in
the driver type setting to correctly detect a lvm volume backed by qcow2,
and handle them just like regular qcow based images.
Full Changelog: v2.24...v2.25