Subject: Re: Roms
To: Phil Nelson <email@example.com>
From: David Brownlee <firstname.lastname@example.org>
Date: 04/22/1999 13:22:12
Just on principle I've put this information, plus the location
of the autoboot images, onto an FAQ webpage under NetBSD/pc532...
In case someone somewhere finds another pc532 in an attic :)
It should show up in an hour or so.
If anyone has any other suggestions for the FAQ, let us know! :)
-=- "That which does not kill us, makes us stranger" -=-
On Thu, 22 Apr 1999, Phil Nelson wrote:
> >I have an pc532, tht's running minix (last i fired it up) :-)
> Wow! A pc532 not running NetBSD :)
> >Is the some way that i can buy the newer rom so i can run NetBSD ?
> Which ROM do you have? If you have the auto-boot ROM from around 1991,
> you have the most current of which I know. But even if you don't,
> you can run NetBSD. It will just take a little more effort to get
> it booted. You will have to find the right place on the disk where
> the boot program lives and give the proper "read ..." command and
> then execute the boot program. That shouldn't be hard to do.
> Get the INSTALL document from the 1.4_ALPHA or 1.4_BETA directories
> (BETA if it is there) and try to follow the install procedure.
> Then, before you reboot, you need to get the boot information
> if you don't have the auto-boot ROM. (If you do have it, you don't
> need the next information.)
> run bim
> You will get something like:
> steelhead# bim
> Disk: disk 1 Type: SCSI
> Physical Sector Size = 512
> Disk Size = 1173930
> partition type sector start length in sectors
> a 4.2BSD 23980 383680
> b swap 2180 21800
> c unknown 0 1173930
> d boot 2 2178
> e 4.2BSD 451260 722670
> f swap 407660 43600
> Boot partition = d
> Default boot image = 0
> Boot Images: total of 8
> (image address and size in sectors.)
> Image address size load addr run addr name
> 0 0 32 0x3e6800 0x3e6820 /usr/mdec/boot
> 1 32 64 0x3bf000 0x3bf020 /usr/mdec/boot
> From this you can easily calculate the disk address of the boot
> program and where to load it and run it. So for the above stuff,
> the boot partition starts at sector 2. The boot image is at
> offset 0 in the boot partition. So the boot program is at
> sector 2 and is 32 sectors long. You need to load it at
> address 0x3e6800 and run at 0x3e6820. Write that information down
> for your system and you can then give the proper ROM monitor commands
> to load the boot program and run it. All the autoboot monitor does
> is to read that information from the disklabel and the boot images
> table on the first two sectors of the disk.
> I hope this helps.
> Phil Nelson NetBSD: http://www.netbsd.org
> e-mail: email@example.com !gifs: http://www.gnu.org/philosophy/gif.html