Hi!
Simple volume definition:
tstlog01-system
20
1.1
# virsh vol-create --pool libvirt-ssd0 --file
vm-files/tstlog01/tstlog01-sys
tem-vol.xml --validate
error: Failed to create vol from vm-files/tstlog01/tstlog01-system-vol.xml
error: unsupported flags (0x4) in function virStorageVolDefParseXML
Omitting --validate creates volume
# virsh vol-dumpxml --pool libvirt-ssd0 --vol tstlog01-system
tstlog01-system
/var/lib/libvirt/images/tstlog01-system
21474836480
200704
196928
/var/lib/libvirt/images/tstlog01-system
0600
0
0
system_u:object_r:virt_image_t:s0
1730277533.331347844
1730277533.329347839
1730277533.330347841
0
# file /var/lib/libvirt/images/tstlog01-system
/var/lib/libvirt/images/tstlog01-system: QEMU QCOW2 Image (v2),
21474836480 bytes
# virsh vol-create-as libvirt-ssd0 tstlog01-system 20g --format qcow2
Vol tstlog01-system created
# virsh vol-dumpxml --pool libvirt-ssd0 --vol tstlog01-system
tstlog01-system
/var/lib/libvirt/images/tstlog01-system
21474836480
200704
196928
/var/lib/libvirt/images/tstlog01-system
0600
0
0
system_u:object_r:virt_image_t:s0
1730277391.657950326
1730277391.656950323
1730277391.657950326
0
It seems both volumes are identical - the one created without
--validate and the one created with vol-create-as.
Questions:
1) Why does validation fail? How to debug it?
2) Why doesn't libvirt create qcow2 v3 even when specifying compat
1.1? When creating an image using virt-manager on the same libvirt
hypervisor host, v3 images are created.
Alma Linux 9.4, libvirt-10.0.0-6.7.el9_4.alma.1.x86_64,
qemu-kvm-8.2.0-11.el9_4.6.x86_64
With best regards,
Veiko
