Subject: Re: Can't boot any of my Macs
To: David Burgess <burgess@neonramp.com>
From: Ken Wellsch <kwellsch@tampabay.rr.com>
List: port-macppc
Date: 07/27/2001 17:41:26
David Burgess wrote:
>
> Ken Wellsch wrote:
> >
> > Having been through a similar experience a week or so ago, I do
> > know where you are coming from. I bought a mac clone (a UMAX S900)
> > which had virtually no peripherals (just floppy) and I have no OS
> > media. I wasted a frustrating evening thrashing away with a Mac I
> > do own with MacOS on it and after a lot of headaches and hassles got
> > the two floppies made. As it turned out, they were a total waste of
> > time. The S900 will not allow the System Tools to update the OF.
>
> I started on this on Monday.... You must be a lot smarter than me.
Little chance of that! B^) I just stumbled along and as for you,
Michael Wolfson provided some critical advice and Mac wisedom.
In my case I had an existing Mac with MacOS. It made a world of
difference especially when making the System Tools disk. I'm
embarrassed to say I have already forgotten how I was able to write
the *.smi (i.e. "self mounting image" is my guess) to a floppy.
Oh yeah, that is right. I just mounted it (or it mounted itself B^)
then I copied the "english" folder contents onto a formatted Mac floppy.
I booted using the Disk Tools floppy and played "swap the floppy" about
a zillion times to run the System Tools executable.
I've forgotten - maybe I could have just copied the folder right to
the Disk Tools floppy... probably didn't think of that... D'oh!
> > So being a serial console kind'a guy (e.g. my alphas) I just used the
> > keyboard sequence to get into OF, used my favorite serial tool kermit
> > to chat with the box, set the needed OF env values then just booted the
> > NetBSD/macppc install floppy which thanksgoodness *can* be dd'ed using
> > a real OS (NetBSD).
>
> I'm in a jam there now.
>
> I've got two 'bootable' disks. One is the bootable ISO image for 1.5.1,
> and the other is the boot.fs disk. I also set up a local bootptab to
> try netbooting. More on that later.
>
> If I "setenv boot-device fd", the disk spins and spits.
I had to type "boot fd0" or I got a nasty fatal gripe from OF.
I confused myself a couple times getting the error by typing "boot fd"
without the "number" part. Maybe that is UMAX specific...
> If I try to set up the CD-ROM, the whole system just laughs.
>
> If I use 'boot whatever', the system ignores me extremely effectively.
> The scariest part there is that the tftp seems to be trying to work,
> but the bootp is failing. I see the bootp traffic in the TCPDUMP, but
> not the arp. I think it's a MAC address thing.
>
> Basically, I can't boot anything but the MacOS fixit disk. I can,
> however, boot that at will. :-) I can't eject it or do anything with
> it, but I can boot from it.
So I take it that "eject fd" doesn't work from the OF?
> > I don't have a working video (this box like the 9500 is clones does
> > not come with built-in video) card, so I just chat via serial when
> > needed and normally via ssh over the network.
>
> I'm just a rube here, but wouldn't just about any PCI video card
> solve your primary problem?
Well, as I understand this, most/all cards on pretty much any vendor
architecture include some PROM type glue on the card. So for example,
a Mac PCI card has open-firmware glue. While a PC card may have x86
code or something.
An entertaining example of this are DEC turbochannel cards. I think
they arrived on the scene along with DEC/MIPS boxes. So the PROM glue
on those cards is MIPS code. Well, early Alphas also do TC cards. I
understood there is some sort of MIPS emulator in the SRM to gronk them
and allow them to properly initialize. Maybe I'm wrong. Sounded interesting.
> Working seems to be a relative term in MacBSD land. The documentation
> I've D/Led for the machine indicates that it should be able to use the
> el-cheapo monitor that is sitting on top of the box right now.
Is this a PC monitor with a VGA to D15 converter dongle? Or is it
a real Mac monitor? A real Mac monitor is supposed to provide pin
settings that "tell" the Mac what resolution it can do. While a less
than cheap VGA converter has some sort of switch(es) to select what
resolution you want to emulate I believe.
> I'm going to try and 'blind-mouse' my way around the screen and see
> if I can't accidentally get the video mode into a position I can use.
>
> > I suppose the 7600 is so broken in its OF you'd not get this to work,
> > but it should be easy to try and cost no money B^)
>
> Actually, it's tantalizingly close. It acts like it might TRY to
> boot every once in a while, and I am seeing things that I expect
> to happen happen. Maybe I'll get another set closer tonight.
>
> Wish me luck. I'll probably post my success flag when I finally
> get frustrated and quit again tonight.
>
> Who knows, it could just be a bad floppy.
Hey, sure - good luck!
-- Ken