> Hello, a problem occurred during making a snapshot for a guest, ask > for help... > > 1. the xml for snapshotdomain like this: > # cat deployment.1 > <domainsnapshot> > <name>a</name> > <disks> > <disk name='/home/qcow2/disk.0'> > <driver type='qcow2'/> > <source file='/home/qcow2/disk.3'/> > </disk> This says that you want to create an external snapshot... > </disks> > </domainsnapshot> > > 2. when i execute the command , a mistake occurred: > # virsh snapshot-create qcow2 deployment.1 But this did not request the --disk-only flag, and was not executed with (unreleased) libvirt 1.0.1. Older libvirt doesn't support external snapshots without the --disk-only flag (but the next release will; assuming that you have new enough qemu). > 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' This says your qemu is too old. External snapshots were not possible until upstream qemu 1.2; it is also available if you use RHEV 3.0 from Red Hat (but NOT if you use RHEL 6.3). > is there anyone has the same problem with me ? Yes, since you are trying code that hasn't been implemented for the versions of software you have installed. > Confidentiality Notice: The information contained in this e-mail and This disclaimer is unenforceable on a publicly-archived list. For netiquette reasons, it is considered better to send mail from a personal account so as to avoid your employer's useless legalese when posting to public lists. _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
