libguestfs errors

If the VM creation fails and there are libguestfs error entries in the log file, check the libguestfs utilities:

1. Connect to the cluster node via SSH.

2. Run the libguestfs diagnostics: 

   libguestfs-test-tool

3. If the diagnostics failed to run:

   1. Remove the /var/tmp/.guestfs-0/ directory: 

      rm /var/tmp/.guestfs-0 -rf

   2. Rerun the diagnostics:

      libguestfs-test-tool