Hi,

Thanks for the advice. I've now tried booting with a larger range of
kernels. With the 1.5b GENERIC and GENERICSBC kernels I do not see any
mention of a video device in the boot messages. The 1.4.2 kernels fare
even worse, failing early in the boot process around the time when the
kernel is querying the MMU. Interestingly, I found that Daishi Kato's
custom kernel (1.4X, dated 4/25/00) will boot the 230 all the way to the
login prompt (yay!); it was also the only kernel to indicate that it had
found a video device. It sounds as though there's some difference between
the 230 and the 280c video subroutines. Given the tight space on the 230,
I'm not sure when I'll get around to testing X11 :-)

Thanks again,

Tim Rayner


On Tue, 7 Nov 2000, Hauke Fath wrote:

> At 9:51 Uhr +0100 3.11.2000, Tim Rayner wrote:
> >Hi,
> >
> >I'm trying to get an old powerbook duo 230 to boot using either a 1.5b
> >generic SBC kernel or the custom kernel provided by Hauke Fath
> 
> [...]
> 
> >While I can bring up a serial
> >console with comparative ease, I remain unable to boot the duo
> >using an internal console. Every time I try, the boot process drops into
> >the debugger just after identifying the root filesystem as ffs, with
> >the message "panic: cnopen: cn_tab->cn_dev == NODEV". The debugger gives
> >the message "Stopped in init at   _cpu_Debugger+0x6:    unlk a6", for what
> >that's worth. The keyboard works at this stage of the boot.
> 
> Do you see any video device listed among the boot messages, like "intvid0
> at obio"? Any difference when booting with an older (say, 1.4.2) kernel?
> Reason I am asking is because I get the same panic on a Q700 with 1.5 --
> here, the internal video adapter is not found. The machine comes up fine
> (and is my primary X server) with 1.4Q.
> 
> >I understand from reading the list archives that while duos are
> >unsupported at this time, people have been able to boot certain duos all
> >the way into X11; I was wondering if anyone had any pointers towards
> >getting a 230 to a humble login prompt :-P?
> 
> If that helps you, a GENERIC 1.5 BETA kernel has enough of Daishi Kato's
> changes to boot my Duo 280c to a working console. I even sometimes get into
> X11 if xdm or teh X server don't get killed by FPE exceptions. So, yes,
> there finally is Duo support in NetBSD.
> 
> You should probably send-pr your problem (there is a web interface on
> www.netbsd.org, in case you do not have access to a working NetBSD box).