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Kvm vm rename and logical volume rename

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title: 'KVM VM Rename and Logical Volume Rename'
date: '2012-11-06T01:20:53-06:00'
status: publish
permalink: /kvm-vm-rename-and-logical-volume-rename
author: admin
excerpt: ''
type: post
id: 25
    - KVM
    - LVM
tag: []
post_format: []

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 
      <source dev="/dev/VolumeGroup/newLVname"></source>

Recreate VM


# virsh undefine oldVMname
Domain newVMname has been undefined

# grep newVMname /tmp/newVMname.xml 
      <source dev="/dev/VolumeGroup/newVMname"></source>

# 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