Question about libguestfs (guestfish) and KVM support

[Danel Ahman]

Does the libguestfs 1.0.85 found on EPEL repository support qemu-kvm  
for KVM or does it use pure qemu?

While running guestfish and other utilities of the family I get an  
warning about kqemu kernel accellerator and the whole thing works  
slowly (seems that it uses qemu).



Danel Ahman

[Richard W.M. Jones]

On Wed, Mar 31, 2010 at 03:28:50PM +0300, Danel Ahman wrote:
>  Does the libguestfs 1.0.85 found on EPEL repository support qemu-kvm 
>
>  for KVM or does it use pure qemu?
>  
>  While running guestfish and other utilities of the family I get an  
>  warning about kqemu kernel accellerator and the whole thing works  
>  slowly (seems that it uses qemu). 
libguestfs in EPEL does not use KVM.  This is because of (what we
think may be) a bug in the EPEL repository:
https://fedorahosted.org/rel-eng/ticket/2982

You can easily use KVM however.  Just set the LIBGUESTFS_QEMU
environment variable:

  export LIBGUESTFS_QEMU=/usr/bin/qemu-kvm

See also:
http://libguestfs.org/guestfs.3.html#qemu_wrappers

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v