Here is the same issue, on a different processor, hope this helps.
** Attachment added: "cpuinfo" http://librarian.launchpad.net/5755674/sean-cpuinfo -- feisty-alternate-i386 for herd-2 cannot install kernel from CDROM https://launchpad.net/bugs/79109 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
