no boot after update from 10.2 to 11.1

English Install/Boot/Login
1

The update has done fine. But now i can’t restart the system. After the BIOS messages the computer restarts again. Using the openSUSE-DVD and selecting “Boot from hard disk” the computer restarts itself again.

So i have booted the rescue system and then:

mount /dev/sda1 /mnt

cd /mnt

chroot .

grub-install

after the setup line grub said:
Error 21: Selected disk does not exist

So, next try:

ls /boot/grub/stage1

/boot/grub/stage1

grub

grub> find /boot/grub/stage1
Error 15: File not found

Grrr. Any ideas?

2

Additional informations:

cat /etc/grub.conf

setup --stage2=/boot/grub/stage2 --force-lba (hd0) (hd0,0)

cat /boot/grub/device.map

(hd0) /dev/disk/by-id/ata-SAMSUNG_HD160HJ_S0XVJ1MP300321

fdisk -l (does not work when chrooted)

Platte /dev/sda: 160.0 GByte, 160041885696 Byte
255 Köpfe, 63 Sektoren/Spuren, 19457 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Disk identifier: 0xc710c710

Gerät boot. Anfang Ende Blöcke Id System
/dev/sda1 * 1 19190 154143643+ 83 Linux
/dev/sda2 19191 19457 2144677+ 82 Linux Swap / Solaris

3

OK. There is no solution. I have reinstalled the system from scratch.