I wrote:
> I have been running a SuSE 9.1 on a HP TC1100 tablet PC. I configured
> ACPI suspend-to-disk and used it heavily. When I switched on the
> computer after a suspend, the normal GRUB boot menu was displayed and I
> was able to select the kernel. When selecting the previous kernel with
> resume option all went well.
>
> The fine thing was: I have dual boot Linux and Windows installed and
> after suspending Linux I could boot windows, suspend that as well and
> then switch between the suspended systems freely.
>
> Now I upgraded to SuSE 9.3, and the behavior changed: When switching on
> the computer after a suspend, the GRUB menu is not displayed any more,
> it immediately resumes the suspended Linux. I think, this is meant to be
> an improvement, however, I don't like it and want to disable it 8^).
>
> The log in /var/log/suspend2disk.log says, it is "preparing boot-loader:
> selecting entry 0". It seems that it modifies or replaces the GRUB menu.
>
> Has anybody an idea where this behavior can be customed / inhibited?

Ok, I found it myself. First, I forgot to mention, that I use the
powersave package. The complete behavior during suspend and resume is
implemented by scripts in /usr/lib/powersave/scripts. The solution was
to disable calling the function grub-once in prepare_suspend_to_disk.

Sorry to have bothered you.

Gunnar