KVM----Recover virtual machines from virtual disks

1, view must first shut down the sub-machine is not running

[email protected] qemu]# Virsh list--all
Id Name State
----------------------------------------------------
-Caimz1 shut off
-CAIMZ2 shut off

2. Cancellation of CAIMZ2

[Email protected] qemu]# Virsh undefine caimz2
Domain CAIMZ2 has been undefined
Where the undefine is the actual deletion of its corresponding sub-machine configuration file. That is, delete/etc/libvirt/qemu/caimz2.xml.
[[email protected] qemu]# ls
Autostart caimz1.xml Caimz2.xml.bak Networks

Restoring caimz2 at this point requires redefining its configuration file.

3, find a similar configuration file backup is CP

[Email protected] qemu]# Virsh dumpxml caimz1 >/etc/libvirt/qemu/caimz2.xml
[[email protected] qemu]# ls
Autostart Caimz1.xml caimz2.xml Caimz2.xml.bak Networks

4. Edit its configuration file

Vim/etc/libvirt/qemu/caimz2.xml

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Check its

[Email protected] qemu]# Virsh list--all
Id Name State
----------------------------------------------------
-Caimz1 shut off

Need to be redefined before warehousing

5. Redefining

[Email protected] qemu]# Virsh define/etc/libvirt/qemu/caimz2.xml
Domain CAIMZ2 defined From/etc/libvirt/qemu/caimz2.xml

6. View

[Email protected] qemu]# Virsh list--all
Id Name State
----------------------------------------------------
-Caimz1 shut off
-Caimz2 shut off

At this time caimz2 and storage.

At this point into the Discovery network is gone. Has changed. This method of recovery cannot be restored to a completely pre-condition, which is equivalent to a backup at this time.

KVM----Recover virtual machines from virtual disks