Re: Dual G5 2.3 (Early 2005, PowerMac7,3), again

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Thu, Feb 19, 2015 at 10:49:37AM +0100, Tobias Nygren wrote:
> Hi!
> 
> Apologies since this has been discussed on the list in the past but I
> did not find any solid conclusion in the archives.
> 
> So I picked up one of these machines sold as defective and got it running.
> NetBSD does not like it. OpenBSD 5.6 does boot on it with UP kernel.
> 
> ofwboot.xcf crashes when it tries to load the kernel text to 0x100000.
> I don't have any experience with this platform, but as a quick test
> I tried to make a hacked ofwboot binary with the bss segment at
> 0x100000 and a bss size of 6 MB to coax the OF to set up some mappings
> there. The bootloader now gets further but it still doesn't work.
> 
> There are references in the list archives to patches that supposedly
> make it work. Any clues? I think this would be a nice machine to run
> NetBSD on.

Just tried booting a G5 with standard ofwboot.xcf and netbsd, and got
as far as (INSTALL.html):

 Bootloader hangs before the copyright notice and the kernel configuration
 ...
 Do not set real-base on an Open Firmware 3 system.

So I might get further fiddling with load addresses? Can you tell me more?

Cheers,

Patrick