Comment 9 for bug 634840

I encounter apparently the same problem when trying to perform a fresh install either of 10.4.1 or of 10.10 beta. The Debian installer fails to detect a four-disk RAID5 on an ASUS M4N78 Pro motherboard (BIOS v. 1205). (The disks in the RAID5 do not show up individually and no other HDDs are installed, so no disks were detected. debian-installer itself also fails to handle this error condition correctly, showing me the Partition disks screen with no disks listed and offering me the two options "Undo changes to partitions" and "Finish partitioning and write changes to disk".) It also fails to detect the disks when set up as two two-disk RAID1s, failing in a different fashion. Installs onto RAID5 using the 22 Sep. daily of 10.10 fail in the same manner as 10.4.1, 10.10 beta and several previous 10.10 dailies. (Actually, I seemed to get a different form of install failure the first time I tried the 22 Sep. alternate install CD, but I can't reproduce it. I can't explain the discrepancy; parted didn't seem to show anything written to the disks after that attempt.)

Logs from failed installations follow.