Public bug reported:

Hello,

When a VM using UEFI is created through the wizard and the wizard is
cancelled in the "customize hardware" step an artifact is left behind in
/var/lib/libvirt/qemu/nvram. This caused a permanent inability to create
a new VM with the same name in my case.

Steps:

1. Create an x86_64 VM named "TEST123" and make a mistake: Supply AARCH64 
firmware. VM startup will fail with an error. Cancel installation and the VM is 
not in the list. 
2. Do step 1 over but give it correct firmware. The VM will fail to startup 
with a firmware related failure. The exception names the file 
/var/lib/libvirt/qemu/nvram/TEST124_VARS.fd
3. Delete /var/lib/libvirt/qemu/nvram/TEST124_VARS.fd
4. Repeat step 2. It works. 

This could make a person crazy for a while and at first glance appears
to be a firmware bug. I was saved by my love of deleting things.

Thank you!

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: virt-manager 1:1.3.2-3ubuntu1.16.04.3
ProcVersionSignature: Ubuntu 4.4.0-79.100-generic 4.4.67
Uname: Linux 4.4.0-79-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jun 29 11:46:24 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-05-23 (37 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: virt-manager
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: virt-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1701344

Title:
  virt-manager fails to delete
  /var/lib/libvirt/qemu/nvram/VMName_VARS.fd  after installation is
  cancelled.

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