Quoting Lars Schimmer l.schimmer@cgv.tugraz.at:
I let it run, added root pwd, username,userpwd, deleted the apache server, added hal, choosed grub in mbr and waited til it was done and rebooted. After reboot, it couldn´t mount /root, because "device not found or busy". I tried it with UUID and with /dev/sda3 in grub....
We've debugged the problem together and found the evil root cause!
It was dmraid! Dmraid starts an intel fakeraid because there was a valied intel software raid metadata chunk on the disk. We suppose this comes from some stresstesting with Windows from the vendor.
Once found this could easily be corrected.
dmraid -r /dev/sda -E dmraid -r /dev/sdb -E
The command aborts and prints out a backtrace but netherless it removed the metadata chunk from the disk successfully.
But after this metadata removeal grub won't boot the system anymore, just reinstall it.
mount /dev/sda3 /mnt/sda3 grub-install --root-directory /mnt/sda3 /dev/sda
And everything worked as expected.
cu, Michael