Starting in libguestfs 1.22, the auxiliary Perl library Sys::Guestfs::Lib will be completely removed from libguestfs. Historically this library contained the first implementation of inspection (only available to Perl programs). However in libguestfs 1.5.3 [released August 2010], most of the code was rewritten in C and included in the core library and available to callers in all programming languages. virt-v2v was modified to remove the need for this library two years ago in March 2011. In the unlikely case there are still callers to this library (outside of a handful of Perl tools in libguestfs itself), I suggest modifying the code to use core inspection: http://libguestfs.org/guestfs.3.html#inspection or second best would be to copy the Sys::Guestfs::Lib code into your program, although note this code is very outdated and possibly insecure. Note this change will also affect RHEL 7. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top