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Re: Call for info: slave drives bootable from OpenFirmware (OldWorl d)



On Mon, Apr 16, 2001 at 05:40:17PM +0200, Michel Lanners wrote:
> 
> 7600/132, with G3/300 processor upgrade, OF version 1.0.5, booting from
> internal SCSI disk. Note that OF 1.0.5 is broken (as far as we know) in
> that you can't select a partition to boot from; it will use the first it
> finds. Therefore I'm still using the quik installed on my old R4 root
> partition ;-). I'll try reinstalling quik on my current root partition
> one of these days....

interesting, i thought OF was supposed to boot the partition marked
bootable.  when you use partition 0.  

even so that isn't really that big a deal, just make sure quik is only
installed on the partition you want.  and dd if=/dev/zero of=/dev/sdaX
bs=1k count=1 on the rest.  

> 'test' is my current 2.4 kernel; I'm selecting it via OF's boot-file
> variable. Here are the OF settings:
> 
> boot-device     scsi-int/sd@1:0		(internal SCSI ID 1)
> boot-file        test	(I think the leading space here is required)
> boot-command    begin ['] boot catch 1000 ms cr again

same as the 7200 then.  i know someone booting quik on a 7200 and they
didn't need the special boot-command, the disks must be fast enough i
suppose. 

> (all others except nvramrc are at defaults)

what is in the nvramrc?  

> the boot-command catches SCSI disks that are slow at spinning up.

yup ive seen that before. 

> Also, on all chaos-based machines, your quik wrapper could patch OF to
> correctly drive the chaos display under OF.... Let me know if you need
> the patch. Or, include a means for user-specified nvramrc patches, and
> pre-load it with the chaos patch.

well, i think it would have to use external user supplied patches,
unless they are under a licence that permits free distribution.
apple's licence is not.  

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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