[SATA - removable USB-drive problem]

[karl]

hi folks,

the problem:
computer with 4 drives - ide-drive, raid-1 (scsi), raid-5 (sata), 
removable usb-drive

intel-server board s3000
boot-order scsi-raid, sata-raid, ide-drive, usb

with the usb-drive disconnected the devices are in order:
(hd0)   /dev/hda   .... ide
(hd1)   /dev/sda   .... sata raid
(hd2)   /dev/sdb   .... scsi raid

the working menu.lst
title           Debian GNU/Linux, kernel vmlinuz-2.6.18-5-686 (sdb hd0)
root            (hd0,0)
kernel          (hd0,0)/boot/vmlinuz-2.6.18-5-686 root=/dev/sdb1 ro lang=de
initrd          (hd0,0)/boot/initrd.img-2.6.18-5-686
savedefault

so everything is fine.

if i connect the usb-drive and reboot the computer the device map seems to 
change to
(hd0)   /dev/hda   .... ide
(hd1)   /dev/sda   .... removable usb
(hd2)   /dev/sdb   .... sata raid
(hd3)   /dev/sdc   .... scsi raid

so grub starts booting, but hangs after looking for /boot ;(


is there any possibility to configure menu.lst (or submitting any 
kernel-option - 2.6 by the way) to tell grub to ignore the usb-drive or 
use it as hd3 / sdc???

thx in advance
greetings
karl s.eiringer