Am 07.12.2015 um 10:07 hat Kis Gellert geschrieben: > Today one of my virtual machines failed starting. > Previously , I might made a snapshot while VM running.
Never access disk images from more than one process at the same time (except if all of them are read-only), it causes corruption. The proper way of taking a snapshot of a running VM is the qemu monitor (i.e. in your case through libvirt). Your best bet for recovering at least some data is using either a hex editor or tests/qemu-iotests/qcow2.py from the qemu source tree to update the number of snapshots to 0 and then use qemu-img convert to copy the data out. Kevin
