I can confirm the same problem. I have a 939Dual Motherboard, too, and it has a JMicron JMB360 controller with one SATA-2 drive attached on it.
With the daily build of March 28th (uname: 2.6.20-13-generic), controller is detected, but the serial ata HD is not. I've tried the following things, unsuccessfully: - force ide mode with sata2 hd - disable floppy - disable other controller (uli sata-1 raid) - disable acpi None of them let me see my sata-2 hard drive. Please find attached my dmesg and lspci -vvn. Greets, Lor3nzo N.B.: the actual configuration is: - floppy controller disabled - uli sata raid controller disabled - sata2 controller (JMicron JMB360) working in IDE mode with 1x 80Gb SATA2 Hard Drive attached - acpi disabled ** Attachment added: "lspci -vvn on March 28th daily build" http://librarian.launchpad.net/7038211/lspci -- can't find sata disk kubuntu 7 beta https://launchpad.net/bugs/95383 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs