Hello, a problem occurred during making a snapshot for a guest, ask for
help...
1. the xml for snapshotdomain like this:
<domainsnapshot>
<name>a</name>
<disks>
<disk name='/home/qcow2/disk.0'>
<driver type='qcow2'/>
<source file='/home/qcow2/disk.3'/>
</disk>
</disks>
</domainsnapshot>
2. when i execute the command , a mistake occurred:
# virsh snapshot-create qcow2 deployment.1
error:
argument unsupported: unable to handle disk requests in snapshot
3. i add the parameter '--disk-only', another mistake occurred:
# virsh snapshot-create qcow2 deployment.1 --disk-only
error:
Failed to take snapshot: unknown command: 'snapshot_blkdev'
4. my libvirtd version is 0.9.4 , i update to 1.0.0 , also had this
problem
# libvirtd --version
libvirtd (libvirt) 1.0.0
5. this is my guest below:
# ls -l
-rw-r--r-- 1 oneadmin oneadmin 1540 2012-11-27 15:27 deployment.0
-rw-r--r-- 1 root root 204 2012-11-27 21:28 deployment.1
-rw-r--r-- 1 root root 5772345344 2012-11-28 17:42 disk.0
-rw-r--r-- 1 root root 459264 2012-11-27 21:02 disk.1
-rw-r--r-- 1 root root 372736 2012-11-27 15:25 disk.2
# virsh list
Id 名稱 狀態
----------------------------------------------------
1 qcow2 running
# qemu-img info disk.0
image: disk.0
file format: qcow2
virtual size: 20G (21474836480 bytes)
disk size: 5.4G
cluster_size: 65536
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK
1 1354019482 142M 2012-11-27 20:31:22 00:00:08.971