Nov 06

KVM VM Rename and Logical Volume Rename

I recently provisioned a Virtual Machine in a KVM Hypervisor with a typo in the name. Even worse I also created the storage LV with a typo. Here is how I fixed it. Off course shut the VM down first.

LV Rename

# lvrename VolumeGroup oldLVname newLVname
  Renamed "oldLVname" to "newLVname" in volume group "VolumeGroup"

Change reference to storage in VM XML

# virsh edit oldVMname
Domain oldVMname XML configuration edited.

# grep newLVname oldVMname.xml 
      

Recreate VM

# virsh dumpxml oldVMname > /tmp/newVMname.xml

# virsh undefine oldVMname
Domain newVMname has been undefined

# grep newVMname /tmp/newVMname.xml 
  newVMname
      

# virsh define /tmp/newVMname.xml 
Domain newVMname defined from /tmp/newVMname.xml

# virsh list --all
 Id Name                 State
----------------------------------
  7 aVMname            running
  - newVMname         shut off

# virsh start newVMname
Domain newVMname started

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