I compared the dmesg from both and I think the problem is that 2.6.22 doesn't probe for ide-hd's. Please check the screenshots in the attachment.
** Attachment added: "dmesg-both.tar.gz" http://launchpadlibrarian.net/9945320/dmesg-both.tar.gz -- can't boot linux-image-2.6.22 ppc https://bugs.launchpad.net/bugs/151013 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs