Okie dokie.  Here is what's happening.

Hardware:

PowerBook 140
4 Mb RAM
1 internal 40 Mb SCSI drive
1 external 40 Mb SCSI drive
1 Iomega Zip Drive (which I haven't been so brave as to try yet, has
		   anyone?)

Software:

Installer 1.1
Mkfs 1.2
MacBSD Booter 1.9.4

I have, at the suggestion of this list, tried the latest release of
MacBSD, although I have not tried the snapshots.  I have used
Installer to install etc12, base12, and the test kernel donated kindly
by Takashi Hamada.  In theory this should all work, although I know of
no one who has done this on this specific machine before.  Everything
installs fine.

So I try to boot into to single user mode, to finish installing.
Everything goes fine until it tells me I have an untested machine.
It gives me the option to Cancel or Boot Anyways.  If I click on the
Boot Anyway part, it immediately goes to a message in the console that
says boot stopped.  Gives no reason, it seems to actually thouroughly
cancel the boot.  So I figured someone might have goofed and mapped
them backwards.  I hit cancel and it processes for a bit, and then
crashes, a solid freeze. 

Here is a bootlog of a typical freeze:

Logging to bootlog
Booting...MID_M68K executable: entry 0x3382.
876564+59792+95316+154848+141937

Set _boothowto to 0x2.
  Bye-bye...
        So I sez to him...  The real way
        that it should be done is to...
Env: ÒROOT_SCSI_IDÓ set to 0 (0x0).
Env: ÒSINGLE_USERÓ set to 2 (0x2).
Env: ÒVIDEO_ADDRÓ set to -18841600 (0xfee08000).
Env: ÒROW_BYTESÓ set to 80 (0x50).
Env: ÒFLAGSÓ set to -2147351963 (0x80020265).
Env: ÒSCREEN_DEPTHÓ set to 1 (0x1).
Env: ÒDIMENSIONSÓ set to 26215040 (0x1900280).
Env: ÒBOOTTIMEÓ set to 852468327 (0x32cfa267).
Env: ÒGMTBIASÓ set to 0 (0x0).
Env: ÒBOOTERVERÓ set to 108 (0x6c).
Env: ÒMACOS_VIDEOÓ set to -18841600 (0xfee08000).
Env: ÒMACOS_SCCÓ set to 1357922304 (0x50f04000).
Env: ÒMACHINEIDÓ set to 25 (0x19).
Env: ÒMEMSIZEÓ set to 4 (0x4).
Env: ÒGRAYBARSÓ set to 1 (0x1).
Env: ÒSERIALECHOÓ set to 0 (0x0).
Env: ÒSERIALCONSOLEÓ set to 0 (0x0).
Env: ÒSERIAL_MODEM_FLAGSÓ set to 0 (0x0).
Env: ÒSERIAL_MODEM_HSKICLKÓ set to 0 (0x0).
Env: ÒSERIAL_MODEM_GPICLKÓ set to 0 (0x0).
Env: ÒSERIAL_PRINT_FLAGSÓ set to 0 (0x0).
Env: ÒSERIAL_PRINT_HSKICLKÓ set to 0 (0x0).
Env: ÒSERIAL_PRINT_GPICLKÓ set to 0 (0x0).
Env: ÒPROCESSORÓ set to 1 (0x1).
Env: ÒEND_SYMÓ set to 1336633 (0x146539).
Env: ÒROMBASEÓ set to 1082130432 (0x40800000).
Env: ÒTIMEDBRAÓ set to 2610 (0xa32).
Env: ÒADBDELAYÓ set to 391 (0x187).
Env: ÒHWCFGFLAGSÓ set to -4864 (0xffffed00).
Env: ÒHWCFGFLAG2Ó set to 4202303 (0x401f3f).
Env: ÒHWCFGFLAG3Ó set to 67890 (0x10932).
Env: ÒADBREINIT_JTBLÓ set to 1082145100 (0x4080394c).

Set _mac68k_vrsrc_cnt to 0.

*freeze*

So anyone have any idea of what is happening here?

Daniel