more multiple dec21140 on ppc <fixed>

Valette Eric eric.valette at
Fri Feb 28 21:41:13 UTC 2003

gregory.menke at wrote:

>  > One was booting and the other just loop asserting the interrupt always 
>  > looking the bott while the same binary was working fine on the other 
>  > board...
> I've seen some IDE strangeness on mcp750's as well.  In our case, we
> cannot boot with the root filesystem on an IDE on any of our 4 750
> units running 2.4.19.  Though once booted, all of them use the IDE
> just fine.  We have to either use a scsi or nfs root.  The nfs case is
> accidentally beneficial for driver developers because when the machine
> locks, theres no filesystem check on restart- which is nice.

I had patches to make MCP750 work correctly on IDE. I can try to find 
them back on tape archive. But be sure that you specify the right root 
when booting something like root=/dev/hdc1 because by default it use 
SCSI. Also you must have a small primary prep bootable partition and 
just dd vmlinuz on this partition. You can then boot directly from disk 
using something like pboot a;

-- eric

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