Try this program.  You will need both patches ...

https://www.redhat.com/archives/libguestfs/2012-March/msg00044.html
https://www.redhat.com/archives/libguestfs/2012-March/msg00045.html

For libguestfs live you will have to modify the open_guest function,
to add 'GUESTFS_ADD_DOMAIN_LIVE, 1', and to remove all of the
inspect_os and mount code.

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
programs, test, and build Windows installers. Over 70 libraries supprt'd
http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw