A few on this machine, mostly the usual "plug-n-play" suspects: openSUSE, Ubuntu, Mint, etc. I've narrowed it down to needing a specific driver which will have to be installed after the install, but I don't have an extra thumb drive for it since the one external drive I do have will have the os on it, and I just haven't been arsed to make it work on a single drive by modifying the partition to add a second one and put the driver there. It's just a pain in the ass.