Re: booting iBook G4 - kernel panic

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,

Jason Thorpe wrote:
> > I get a kernel panic very early. If it helps, I can try to retype or make a screenshot with my phone.
> That would be super helpful!

It doesn't work work very well, it scrolls too quick and the text gets 
blurred.I see it like this:

Skipping crash dump on recursive panic
panic: trap
cpu0: Begin traceback
0x00b96310 at vpanic+0x144
0x00b96340 at panic+0x50
0x00b96390 at trap+0x100
0x00b96450 kernel ISI trap by 0xff8472b0: srr1=0x40003030
        r1=0xb96520 cr=0x20424248 xer=0 ctr=0
0x00b96520 at 0xfffffffc
0x00b96540 at OF_read+0xb0
0x00b96570 ofw_stack+0x44
saved LR(0x2c) is invalid.cpu0: Ent traceback

as far I can see it is the same over and over. It usually goes that way, 
tried a couple of times.

On another attempt it just halts:
>> NetBSD/macppc
11097380+166504 [476480+464064]=0xba3ec0
start=0x100000
No adb support preset, assuming USB keyboard
mem region 0 start=0 size=20000000
mem region 1 start=20000000 size=40000000
avail region 0 start=0x13000 size=0xded000
avail region 1 start=0xe1b000 size=0x5edd5000

Then halt, nothing.

I then found CD of old 1.5.2! It which dies with a panic trap, but it is 
readable, because it  initialized the framebuffer, prints total 
memory... so I think the kernel got further. Sure it is a very very old 
version... amazing I had it. Probably it didn't support such a "new" 
computer...

Thus I had the idea o try more versions. I tried 7.2 boot cd and it 
works up to the install prompt, with a white over black framebuffer.

This was encouraging, I burned  9.3 CD and that one boots to!

Confusing, something is not right in the installed disk and/or the final 
kernel is different.

What should I do?
Could I try "installing over" without formatting? Or an in-place upgrade 
from the same OS version? Maybe even installing the kernel could work.
I mounted the target disk and it looks fine, all files are there.

However, with only the install CD it is a little fiddly I guess.

Riccardo