Debian and Raid - and No Booting

[kampmann]

There seems to be a problem with Raid on Debian. I got a new Fujitsu Primergy TS 100 S1 server, with hardware Raid (and 2 disks) installed everything nicely over the net including GRUB - but when it comes to reboot the system does not boot.

Is there anybody here who knows about the problem?

Tia for an answer

Jörg

[alf55]

Did you run the "grub command" yourself, or did you let some installer program do it? I install Linux to servers with both software raid and hardware raid but I do the grub install manually before rebooting. I also assume that the "virtual drive" being presented by your hardware raid is seen as "/dev/sda"...

# for harware raid:
grub
setup (hd0)
quit

For completeness, for software raid

# Assuming that "/boot" is found on /dev/sda1 and /dev/sdb1
# for software raid (combining /dev/sda and /dev/sdb):
grub
device (hd0) /dev/sda
root (hd0,0)
setup (hd0)
quit
grub
device (hd0) /dev/sdb
root (hd0,0)
setup (hd0)
quit

For the software raid, grub is placed on both of the drives and the BIOS is set to boot from the each drive in order. With software raid the boot sector is not combined.