[9fans] panic in 9load(?) when booting ibm thinkpad r31

[Axel Belinfante <Axel.Belinfante@cs.utwente.nl>]

I'm trying to install Plan 9 on a thinkpad r31.
Booting/Installing from CD works ok.
However, when I try to boot from disk I get the following:

PBS...Plan 9 from Bell Labs
ELCR: 0800
apm ax=fc40 cx=f000 dx=40 di=ffff ebx=0 esi=-1
dev A0 port 1F0 config 045A capabilities 0B00 mwdma 0007 udma 203F
dev A0 port 170 config 85C0 capabilities 0F00 mwdma 0007 udma 0407
pcirouting: South bridge 8086, 248C not found
FLAGS=10202 TRAP=6 ECODE=0 PC=80027c13
  AX 80024809  BX 00000002  CX 80038c74  DX 00000001
  SI 00000003  DI 803161e4  BP 00000010
  CS 0010 DS 0008  ES 0008  FS 0008  GS 0008
  CR0 80000011 CR2 00000000 CR3 0000c000
panic: exception/interrupt 6

Press almost any key to reset..

Any ideas?
Is the problem that it somehow cannot find plan9.ini
(should be there in a 9fat partition),
or does it not even get that far?
The 9load that I installed seems the most recent one.
The size and md5sum from /386/9load are the
same on the new laptop and existing installation.
However, the md5sum of the /n/9fat/9load is on both
machines different from the /386/9load,
even though the size is the same...
and i thought I installed the version in /n/9fat from
disk...

For comparison, when I boot from CD, the boot sequence
(starting at the pcirouting line) is as follows:

pcirouting: South bridge 8086, 248C not found
found partition sdD0!cdboot; 34618+1440
using sdD0!cdboot!plan9.ini

Plan 9 Startup Menu:

etc.

Thanks,
Axel.