Hi Tobias,

>I want to run a minimal BSD 1.1 system on my old Macintosh IIcx, 40MB HD,
>5MB RAM. External Video card Apple Portrait Display.
>I created 3 partitions:
>   Mac Booter (Macintosh Volume) - 8.5 MB
>   A/UX Root/Usr Slice 0 - 26 MB
>   A/UX Swap - 5.5 MB
>I runned Mkfs.
>I installed "netbsd10", "base" and "etc" with the Installer application.
>I installed old MacOS 6.0.5 min. system on the Mac Partition and the Booter
>1.8.
>[...]
>Failure in BSD boot. nextpa=0x106000, high[0]=0x100000
>Panic: You`re hosed!
>Stopped at   _Debugger+0x6: unlk  a6
>db) unexpected trap; vector offset 0x0 from 0x739c0000
>Do I have the wrong hardware?

According to Colin's machine-overview on puma.macbsd.com, the IIcx should be
capable of running MacBSD, so your hardware seems OK. Now about the software:
everything you have is very old. The latest "release" version is 1.2.1, and
a lot of improvement has been made since in the -current release. Also, the
current booter is 1.11. My suggestion would be to download base and etc from
a -current snapshot and try that, with the latest booter and installer.
Very important: make sure you have Mode32 installed and 32-bit adressing
enabled. If I remember correctly, the "You`re hosed!" error message is what
you get with 32-bit adressing disabled. The newer booters check for this
and refuse to boot in 24-bit mode.
Your video card may be a problem: I'm not sure if it is supported. However,
you can help getting it supported, check puma.macbsd.com for details.

Hope this helps. Good luck,

               Nico

--
  Dr. N.J.R. van Eikema Hommes     Computer-Chemie-Centrum
  hommes@ccc.uni-erlangen.de       Universitaet Erlangen-Nuernberg
  Phone:    +49-(0)9131-856532     Naegelsbachstr. 25
  FAX:      +49-(0)9131-856566     D-91052 Erlangen, Germany