Problems booting miniroot for upgrade to 5.1

[Dirk Heinrichs <dirk.heinrichs%altum.de@localhost>]

Hi,

I'm running 5.0.1 on Amiga and wanted to upgrade to 5.1. So I
transferred miniroot.fs to the swap partition using dd and rebooted from
it. I enter "netbsd -b" at the bootloader prompt, but after a few
moments, I get a message:

"kernel symbol table missing"

and

"unable to allocate space in parent map"

followed by a "db>" prompt.

Any hints what could be wrong?

System is Amiga 3000 with Cyberstorm MKII (060) and CyberGFX 64/3D.

Thanks...

        Dirk