softraid boot

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softraid boot

rgcinjp
ppc@

AFAIK softraid can not boot a macppc.

1 is this just a manpower issue (no one has implemented the code yet). or
is there a deeper technical issue (that i most probably don't know of)?

2 i've looked at the softraid loader for sun ... since it also uses ofw ...
can we follow the general pattern of that code and properly implement
softraid booting on macppc?

i'm mostly interested in making FDE boot on macppc ... if it is technically
possible.

rgc

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Re: softraid boot

George Koehler-2
On Tue, 10 Nov 2020 18:37:45 +0900
rgc <[hidden email]> wrote:

> ppc@
>
> AFAIK softraid can not boot a macppc.
>
> 1 is this just a manpower issue (no one has implemented the code yet). or
> is there a deeper technical issue (that i most probably don't know of)?

No one has tried to code it.  I don't if ofwboot would be too big after
one adds the code for softraid and AES.  We seem to load ofwboot at
address 0x20000 and kernel at address 0x100000, which looks like plenty
of space to me, but there might be another limit that I missed.

> 2 i've looked at the softraid loader for sun ... since it also uses ofw ...
> can we follow the general pattern of that code and properly implement
> softraid booting on macppc?

Maybe not: the way that softraid_sparc64.c searches for disklabels on
disks might not make sense on macppc.    --George

>
> i'm mostly interested in making FDE boot on macppc ... if it is technically
> possible.
>
> rgc
>


--
George Koehler <[hidden email]>