I needed to do some work on a KVM guest. To be able to go back to it's previous state, I took a snapshot:
virsh snapshot-create vph-share
After this, I tried to SSH into the VM:
But I got
ssh: connect to host vph-share.hexvm port 22: No route to host
This worked fine before I took the snapshot.
I took a look at the snapshot-list, it looked normal. I then tried to log in again, and got
ssh: connect to host vph-share.hexvm port 22: Connection timed out
I also tried a
virsh shutdown, but although virsh reports that the VM is being shutdown in reality it isn't. A following
virsh start says that the VM is already active.
virsh reboot and got:
error: Failed to reboot domain vph-share error: Requested operation is not valid: Reboot is not supported without the JSON monitor
I tried the same actions on another VM on my server, without problems.
The log (/var/log/libvirt/qemu/vph-share.log) only has a note about the shutdown attempt:
2015-03-19 09:14:43.445+0000: shutting down
How can I get this VM back to work again?
The OS of the host machine is Ubuntu Server 12.04.
The OS of the KVM guest is Ubuntu 12.04.