I have the same problem with the Dapper Live Cd. I'm running Athlon 64 2800+ on a MSI mobo and WD 400 GB sata drive with Plextor P916A DVDR sata drive. The bios and the drive firmware are uptodate.
It hangs for a long time on "mounting root file system", then eventually displays "booting the kernel". At this point the i386 Cd hangs forever. The amd-64 Cd immediately bombs at this point and spews out a couple screens of erros that go by way too quick to read. I seem to recall something about "ata failed to respond" but it was way too quick. The XUbuntu amd-64 cd behaves the same. The alternate amd-64 cd complains there is no valid cd-rom device. Judging from the sheer volume of posts on the forums, Dapper has some serious problems with SATA. -- CD detection failed on install. https://launchpad.net/bugs/55232 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs