I seem to have the same problem with a Feisty Herd 5 Desktop-CD. I've got a SATA-HD attached to a Intel ICH5 controller, it is recognized in Edgy and Dapper without a problem, but Feisty just doesn't "see" the HD, neither the installer nor gparted show it.
[EMAIL PROTECTED]:~$ uname -a Linux ubuntu 2.6.20-9-generic #2 SMP Mon Feb 26 03:01:44 UTC 2007 i686 GNU/Linux ** Attachment added: "dmesg.log" http://librarian.launchpad.net/6608793/dmesg.log -- Kernel fails to load ICH5 SATA driver https://launchpad.net/bugs/78544 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs