There is support for the 603[e] in linux-pmac, I'm not sure how close Mklinux
is to running on a 603[e].
 
There are various issues to porting to the powerbooks.  Only the 5300 Powerbooks
have Open Firmware, which eliminates a major obstacle to the pmac port.  I dont
have one, so I cant tell you exactly what has to be done, but here's a rough
estimate:
1. Video driver: initialize the screen.  OF can do this for now.
2. SCSI driver: write one, unless the Powerbooks use MESH?
3. Ethernet driver: write one, may/may not be similar to the PCI machines
4. anthing else thats different, I'd guess that they're pretty similar to
   the PCI desktop models, since they do have a PCI bus in them (5300 that is).
 
if someone wants to give me one, I'll do the port! :)
i'm not very optimistic about a port of the monolithic kernel to a non-pci non-OF
machine, but there is always the possibility someone will do it.
 
matesch@students.wisc.edu
 
Important Correction--
 
I am reasonably sure that the Powerbook 5300 series does not have Open Firmware.
 
jsb204@psu.edu
 
A bit more info--
 
According to "Technote 1061 - Open Firmware: The User
Interface" you can put an Open Firmware based ppc machine in
a mode to access the open firmware prompt (Similar to a VAX
or Alpha ">>>" prompt) by holding down the O,F, Option, and
Command keys and booting the machine with another computer
attached to the serial port.
 
Doesn't seem to work on my PowerBook 5300cs.
 
acs@campus.com
 
For this to really work, someone needs to make a bootloader
for linux much like loadlin.exe for DOS. Basically it would 
be an app that you run from the macos that loads the kernel
into ram and then boots it. If one was really creative, it seems
that you could dis-assemble the mklinux control panel and
along with the NetBSD bootloader for the Mac 68k get this to
work. Once this works, then you can begin to test/develop
kernels.
 
jcarr@linuxppc.org

5300 series PB do not have open firmware but the 3400C series PB do!
and the O,F, Option, and Command keys at boot do work!

I tried to install mklinux on my PB 5300 from the DR3 CD.. but I think that it can't access to my SCSI CD-ROM... the ID on the SCSI BUS is 4!
Do I have to do something special to boot on the CD or maybe I can't install MKL on my box???

Thank-you for Help!

monsieur_mac@hotmail.com

I am trying to do the same. I have a PB 5300c without an internal CD. 
How can I get MKL installed on my PB??!?!?  I wish DR3 could
support the SCSI port for this system. Also, support for PCMCIA based
ethernet is greatly appreciated.

atd@dcse.com

What about the 1400s?! It seems that every Powerbook
from the NuBus 5300 to the PCI G3 will run at least
one of the Linux flavours...except for the 1400! Why?

Please, please, please!

MkLinux _does_ now work for the 1400. See details in
this category's parent-category's sub-category (sorry
for that construction) "What PowerPC Machines work with
Linux?"

--Jonathan Levi, drjlevi@netonecom.net