There are 4 SATA disks. No IDE disks.

/boot partition was created at the top of sdb and it is called sdb3 which is 50MBytes.
Bootloader for SUSE was installed to sdb3 by SUSE installer.

Using KNOPPIX,
#dd if=/dev/sdb3 of=/mnt/xxx/bootsector.dat bs=512 count=1
xxx is a FAT32 partition.

In WIndows XP, boot.ini was edited to have an entry to this bootsector.dat:
c:\bootsector.dat="SUSE 10.1"

When SUSE is selected at the NTLDR Menu, GRUB was loaded and the famous "GRUB_" was displayed and freezed there.

This motherboard ASUS A8N-SLI Premium has a function to select boot drive and sdb was selected to be booted.
This time GRUB> console appeared and console works.
It seemed like menu.lst did not work.
So manually input command,
root (hd1,2)
error no such partition !
this is exactly what was written in menu.lst created by SUSE installer.
Now, tab was used to find out which partitions were recognized and I found out that (hd1,2) which is sdb3 is (hd0,2) in GRUB.
So, the disk numbering is diffrent in SUSE Installer and GRUB.
then
kernel/vmlinuz root=/dev/sdb7 vga=0x31a resume=/sdb5 splash=silent showopts
initrd /initrd
boot

result: kernel panic
In the original menu.lst:
kernel/vmlinuz root=/dev/sdb8 vga=0x31a resume=/sdb6 splash=silent showopts

I found this page:
http]//www-uxsup.csx.cam.ac.uk/pub/doc/suse/suse9.3/suselinux-adminguide_en/sec.grub.probs.html

In here,
System Containing IDE and SCSI Hard Disks Does Not Boot

During the installation, YaST may have determined the boot sequence of the hard disks incorrectly (and you may not have corrected it). For example, GRUB may regard /dev/hda as hd0 and /dev/sda as hd1, although the boot sequence in the BIOS is reversed (SCSI before IDE).

In this case, correct the hard disks during the boot process with the help of the GRUB command line. After the system has booted, edit the file device.map to apply the new mapping permanently. Then check the GRUB device names in the files /boot/grub/menu.lst and /boot/grub/device.map and reinstall the boot loader with the following command:

grub --batch < /etc/grub.conf

But I do not understand "correct the hard disks during the boot process with the help of the GRUB command line" I would like to know how to do this.
Maybe using map command ? Please advise exactly what commands should be typed in.

Thank You in advance.
pjo