On Fri, Dec 23, 2011 at 05:01:45PM +0100, Christophe Fergeau wrote: > I'm a bit confused by derives-from VS upgrades here, but anyway my Upgrades is for a logical progression of releases from a vendor. Newer links in the chain may drop old hardware, and add new hardware. Derives is for when a new distro is created that is based off another distro. A derivative will typically offer support for a superset of hardware. We also use this with various "psuedo distros" which are a base for real distros. Clones is for plain 3rd party rebuilds of distros. The hardware support will generally be identical. So, some examples Fedora 17 upgrades Fedora 16 Fusion Linux 16 derives Fedora 16 CentOS 6.1 clones RHEL 6.1 Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|