Subject: Re: LC II Strikes Again
To: Mark Murdock <fee@tetrahome.tetranet.net>
From: Colin Wood <cwood@ichips.intel.com>
List: port-mac68k
Date: 12/09/1997 18:40:49
Mark Murdock wrote:

> A couple days ago I mistakenly posted a message about having resolved the 
> issue with booting 1.3Beta on my LC II.  There are still some items that 
> have me pretty confused, so listen to this and tell me what you think.
> 
> Recall: LC II, 6 M of ram, standard setup.  Running system 7.0.1.
> 
> Here are the different ways we tried this and here are the results..
> 
> system 7.0	no Mode32	Wont boot kernel
> system 7.0	Mode32		Wont boot kernel
> system 7.0.1	no Mode32	Wont boot kernel
> system 7.0.1	Mode32		Wont boot kernel
> system 7.6	no Mode32	Kernel boots fine
> 
> When I say "wont boot kernel", I mean it doesnt get out of the booter period.

gotcha.
 
> Why does it work fine with system 7.6?  I don't have the space for system 
> 7.6, so I really need to be running 7.0.1, but I can't get NetBSD to boot 
> from it for the life of me.

my guess would be that you're missing something from a 7.0.1 install and
not in the 7.6 install.  did you do a "custom install" or a normal install
of 7.0.1?  netbsd appears to need something that is not included in a
minimal install, so that might be it.  you might also try system 7.1 if
you can find a copy.  i find that it has a very small memory footprint but
works better than 7.0.1 (and it boots netbsd on my machines just fine ;-)

> Is the LC II not 32-bit clean?  I do not need Mode32 do I?  The Memory 
> control panel has the option for 32-bit mode even when I have not 
> installed Mode32, so I figured that was something of a sign.

the LCII _is_ 32-bit clean (only the older Mac II-series machines were
dirty).

> I'm drawing a blank.  It is acting as if the system software is not 
> really putting it in 32 (as opposed to 24?) bit mode, whereas system 7.6 
> was doing the trick.  Let me add another bit of information .. the system 
> 7.0.1 install was done as "System Software for the LC II" (or was it 
> simply LC).  Would this have ANY impact??

Maybe so.  I'd recommend redoing the 7.0.1 install as a full install, then
you can toss any extensions you don't want.  There is actually something
put into the system file itself by a full install of the system that's not
there in a minimal install (and maybe even a custom install in this case).

> (What i'm getting at is some bug in the LC-specific install that never 
> lets the system get out of 24-bit addressing even though it SAYS it does)

are you sure about this?  your machine should be in 32-bit mode before you
even try to boot (check in the memory control panel to be sure).  i'm
pretty sure that the current booter will warn you about this and stop
before booting if this is the case....

i hope this helps some.

later.

-- 
Colin Wood                                 cwood@ichips.intel.com
Component Design Engineer - MD6                 Intel Corporation
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I speak only on my own behalf, not for my employer.