[ale] Recovering dual boot on installed systems

[johnmills at speakeasy.net (John Mills)]

ALErs -

I had a working dual boot installation of openSuSE-11.3 and SuSE Linux 
Enterprise Server (i.e., Novell) on two disks in the same system. The SLES 
setup went on first and its 'grub' knows only itself. The openSuSE 'grub' 
knows of both installations and was the basis of the dual-boot 
configuration.

I was rearranging the boot setup but <OOPS/> ran my changes when booted 
into SLES. &8-( Now I can't figure out how to re-activate the dual boot.

I can start the system from the openSuSE installation DVD in 'Rescue' mode 
and mount and chroot to its partitions, but I don't know how to re-write 
the boot block from that viewpoint. I expect I could also mount the SLES 
partition and edit the 'grub' files but I'm not sure what I need to do 
there.

Could anyone give me a pointer or lead on this?

TIA.

  - Mills