Qemu Quick Ref + KVM + Virsh

1 facts

• get disks

virsh domblklist $VM

• disk info

qemu-img info $VM_IDISK

• get ip adress of vm

virsh qemu-agent-command $VM '{"execute":"guest-network-get-interfaces"}' | python3 -mjson.tool | grep ip-address

2 resize

• resize image

qemu-img resize $VM_IDISK 100G

3 snapshot

• list snapshots with virsh

virsh snapshot-list $VM

• commit snapshot from online vm

virsh blockcommit $VM $VM_IDISK --active --pivot --verbose

• commit snapshot from powered-off vm

qemu-img commit /srv/kvm/raid5/foreman01_6.qvm-bkp

• delete snapshot meta data

virsh snapshot-delete $VM snap_name --metadata