We'll try to have recent versions of as many Linux distributions as possible, certainly including Debian.
There will be some Ubuntu Linux, but the odds are that the new release (5.10) won't have been sent out by then (We will have at least one set of the Install and Live CD's for 'Breezy Badger' for i386 - downloaded using Azureus).
Please come and help, or bring your machine along. Note: Please, please back up your machine before you bring it, unless you are absolutely willing to risk losing everything on it!
When you arrive at the porters lodge, you will be required to sign-in and list all peices of equipment that you are bringing in to the InstallFest, otherwise you will not be allowed to take it out of the building at the end.