Snapshot-list defaults to being in alphabetical rather than chronological order. List Snapshots virsh snapshot-list $VM_ID then pass it to virsh snapshot-create to create the snapshot virsh snapshot-create $VM_ID $FILEPATH If you just love writing xml, then you can create a file like so: The "state" of the guest is also saved.Ĭreate Internal Snapshot With Name virsh snapshot-create-as $VM_ID $SNAPSHOT_NAMEĬreate Internal Snapshot With Name and Description virsh snapshot-create-as $VM_ID $SNAPSHOT_NAME $DESCRIPTIONĬreate Internal Snapshot With Name and Description Using File Whilst the snapshot is being taken, the guest will be "paused". You can take snapshots of guests whilst they are running. Snapshotting Create Internal Snapshot virsh snapshot-create $VM_ID If you wish to make sure the guest has been shut down before running an rsync, you can use: STATE=$(virsh domstate $GUEST_ID)Įcho "Cannot backup server that is currently running!" If you need to determine what state a guest is in, you can run: virsh domstate $GUEST_ID Run the following command if you wish to retrieve a guest's MAC address: sudo virsh domiflist $GUEST_ID | sed -n 3p | awk '' This section is all about retrieving information about a guest. Use the following keyboard shortcut (not a command): Cntrl-] To disable Guest Autostart virsh autostart -disable $VM_IDĮnter Guest's Console virsh console $VM_ID You can manually edit the guest's xml configuration file with: virsh edit $VM_IDĬhanges will not take effect until the guest is rebooted Start Guest on Boot (Autostart) virsh autostart $VM_ID The filename here is the same file that you saved to in the previous command, not one of the other guest files! Edit Guest Configuration Load Guest (restore) virsh restore $FILENAME Progress may be monitored using domjobinfo virsh command and canceled with domjobabort (or just Ctrl-C). -running | -paused - Normally, restoring a saved image will decide between running or paused based on the state the domain was in when the save was done passing either the -running or -paused flag will allow overriding which state the restore should use.-bypass-cache - the save will avoid the file system cache, although this may slow down the operation.You may also wish to refer to save-image-dumpxml and save-image-edit If you forgot to provide this, you can make use of save-image-define later to achieve the same effect. For example, it can be used to account for file naming differences that are planned to be made via disk snapshots of underlying storage after the guest is saved. -xml $FILEPATH - Usually omitted, but can be used to supply an alternative XML file for use on the restored guest with changes only in the host-specific portions of the domain XML.virsh restore (in "Load Guest" below) restores from this state file. Once saved, the domain will no longer be running on the system, thus the memory allocated for the domain will be free for other domains to use. Saves the RAM (not including disk) of a running guest to a "state file" at the specified file name/path, so that it can be restored later. In order to use a name over again for a new guest, you have to undefine the old one. This means that guests will also show in virsh list -all when Define a Guestĭefining a guest allows one to start it from its name, rather than having to find it's XML file and You can only do this whilst the guest is not running. Rename guest virsh domrename $OLD_NAME $NEW_NAME To resume a guest (unsuspend them), run the following command: virsh resume $VM_ID_OR_NAME Memory and can be restored to its exact state (even after a reboot), it is necessary to save andĪ suspended session will be lost if the host system is rebooted. Which would mean it no longer takes up memory, but is not instant. You may want to save/load a session instead, However, it will continue to reside in memory. Suspension is a way to immediately "pause" a guest so that it no longer uses the CPU, disk, or Run the following command to suspend a guest: virsh suspend $VM_ID_OR_NAME virsh destroy $VM_ID_OR_NAMEīelow is a simple example of cloning a guest. The disk image will remain and the guest can be restarted. You should use this if a guest becomes unresponsive. This command is an ungraceful shutdown, much like if you were to pull the power out of a computer. Shutdown Guest virsh shutdown $VM_ID_OR_NAME If you only want to list the runnning virtual machines then use: virsh list Guest Management List Guests virsh list -all
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