Difference between revisions of "Qemu Quick Ref + KVM + Virsh"
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| (3 intermediate revisions by the same user not shown) | |||
| Line 11: | Line 11: | ||
* resize image | * resize image | ||
qemu-img resize $VM_IDISK 100G | qemu-img resize $VM_IDISK 100G | ||
| + | |||
| + | =convert= | ||
| + | * Error: Cannot store dirty bitmaps in qcow2 v2 files | ||
| + | qemu-img convert -O qcow2 -o compat=1.1 old-image.qcow2 new-image.qcow2 | ||
=snapshot= | =snapshot= | ||
| Line 18: | Line 22: | ||
virsh blockcommit $VM $VM_IDISK --active --pivot --verbose | virsh blockcommit $VM $VM_IDISK --active --pivot --verbose | ||
* commit snapshot from powered-off vm | * commit snapshot from powered-off vm | ||
| − | qemu-img commit | + | qemu-img commit $VM_DISK_DELTA_FILE |
* delete snapshot meta data | * delete snapshot meta data | ||
virsh snapshot-delete $VM snap_name --metadata | virsh snapshot-delete $VM snap_name --metadata | ||
| + | * delete snapshot within qcow2 file | ||
| + | qemu-img snapshot -d $SNAP_NAME $VM_DISK | ||
[[Category:KVM]] | [[Category:KVM]] | ||
[[Category:Linux]] | [[Category:Linux]] | ||
| + | [[Category:ReferenceCards]] | ||
Latest revision as of 06:41, 23 December 2023
Contents
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 convert
- Error: Cannot store dirty bitmaps in qcow2 v2 files
qemu-img convert -O qcow2 -o compat=1.1 old-image.qcow2 new-image.qcow2
4 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 $VM_DISK_DELTA_FILE
- delete snapshot meta data
virsh snapshot-delete $VM snap_name --metadata
- delete snapshot within qcow2 file
qemu-img snapshot -d $SNAP_NAME $VM_DISK
