This is an archived copy of the Xen.org mailing list, which we have
preserved to ensure that existing links to archives are not broken.
The live archive, which contains the latest emails, can be found at
http://lists.xen.org/
Now related to Xen but this is exactly what I do with my laptop in order to make
the backup image as small as possible. Works great! So the same should work with
virtual machines as well...