Hello all,
I'm using coreboot4 + seabios to boot a K8/RS780/SB710 based board, my SATA disk and DVD-drive connects to SB710's SATA0/SATA1 port.
Now the board can boot Ubuntu-10.10-i386 and FedoraCore-13-i686, and everything seems ok, but with 64bit linux OS, including SUSE11-X86_64/ RHEL5.5-X86-64/ Ubuntu-10.10-X86_64, the SATA drive cannot be recognized, the kernel reports "qc time out" during SATA disk scanning, and randomly crashes during this process.
I checked the mptable and confirmed the IRQ of ahci is correct. With pci=nomsi parameter, the 32bit kernel boots and works fine, 64bit kernel uses the same irq number and can't detect SATA disk correctly. Without pci=nomsi, 32/64 bit kernel may use different MSI irq number, but the result is same, 32bit ok and 64bit fail.
Later I tried to install 64bit linux with IDE harddisk/DVD, seabios successfully boots the installation DVD, but linux can't find any CD-ROM & harddisk. The installation script can eject the DVD-drive, but it can't find the device file to mount and reports no CDROM detected, so the installation can't continue.
I think maybe something is wrong with ACPI or other tables bios provides to linux kernel? I'm not familia with the bios/kernel interaction, does anyone has any suggestions on the problem? Thanks very much!