GRUB; reboot; next partition selection

[Ice]

Hey, I'm curious if there is a way to easily select the next partition (for when Debian comes back up) during a reboot.
I know that this was a feature of KDE back when I was using SuSE.

I checked the man pages of Shutdown, reboot, halt, etc. and came up with nothing so far.  I have also googled for a bit...

Anyone know a way to use "# reboot" and specify the next bootup partition? (/dev/hdb1 instead of /dev/hda1)