nanobsd boot slice selection does not work

[Matthias Teege]

Moin,

I have problems with the bootslice selection on a soekris device. I use
updatepX to copy new images to the device but after a reboot the old
slice is mountet as root.

I boot the device from slice 1, updatep2, reboot the device, "2" is
selected in the bootmanager but ads1a is mounted as root. After selecting
"2" with keyboard on the console it works. After that I can reboot the
device without any problems and slice 2 is mounted as root.

I can reproduce this problem with different CF Cards. Does anyone know
this problem? Can I force the bootslice selection?

My testdevice is a 4801 with comBIOS ver. 1.31  20070408 the system is
FreeBSD 7.2pre.

Many thanks
Matthias