APUS does not boot

[Andreas <sup...@gm...>]

Hello all,
for quite a while now I try to boot APUS on my Amiga. It is an A4000T wit=
h=20
CSPPC, CV64-3D, Ariadne2 and Algor. I use the current kernel and ramdisk=20
images from the APUS website.
Currently this fails due to some strange error where I can only suspect t=
hat=20
is is caused by the ramdisk.
The kernel starts im most cases and also reports my SCSI devices attatche=
d to=20
the UW controller of CSPPC correctly. All seems ok until it prints this:
=2E..
Freeing initrd memory: 851k feed
cramfs: wrong magic
FAT: bogus logical sector size 0
FAT: bogus logical sector size 0
kernel BUG at buffer.c:2518!
Oops: Exeption in kernel mode, sig: 4
=2E..
=2E..
  (0)Reboot in 180 seconds..

This is always the same.
I start APUS with this line:

bootstrap --apus -k vmlinuz-2.4.20-apus -r ramdisk.image.gz root=3D/dev/r=
am=20
video=3Dvirge:off video=3Damifb:vga nobats

Let me know, if more details are required. Does anyone know what can help=
?
Bye,
Andreas