[OpenBIOS] testing Max OS X boot on latest trunk (revision 1085) + divide by zero patch

[Mark Cave-Ayland]

On 12/01/13 16:05, Amadeusz Sławiński wrote:

> I used the latest proposed divide by zero patch
>
> So it seems like it is almost there.

:)

> Seems like it still can't load kernel when run with boot cd:,\\:tbxi
> Mac OS X 10.0
> http://asmblr.net/scrot/2013-01-12-155737_1366x768_scrot.png
>
> Mac OS X 10.2
> http://asmblr.net/scrot/2013-01-12-155642_1366x768_scrot.png
>
> Mac OS X 10.4
> http://asmblr.net/scrot/2013-01-12-155935_1366x768_scrot.png
>
>
> However when I specify partition to use it loads:
> Mac OS X 10.0 (boot cd:9,\\:tbxi)
> http://asmblr.net/scrot/2013-01-12-163133_1366x768_scrot.png
>
> Mac OS X 10.2 (boot cd:9,\\:tbxi)
> http://asmblr.net/scrot/2013-01-12-163300_1366x768_scrot.png
>
> Mac OS X 10.4 (boot cd:3,\\:tbxi)
> http://asmblr.net/scrot/2013-01-12-163419_1366x768_scrot.png

I have a patch for this, but it's based upon a refactored version of the 
partition parsing code which I haven't applied yet. Basically the fix is 
that if you're autochoosing a partition to boot from, make sure you 
explicitly add the found partition found into the bootpath property. 
Otherwise BootX falls back to its default behaviour which is to scan the 
first 3 partitions on the device.

> There is also another patch which I think I forgot to mention but it
> makes kernel boot further on older versions:
> https://lists.nongnu.org/archive/html/qemu-devel/2011-08/msg01418.html
> it fakes frequencies of some hardware
>
> Mac OS X 10.0
> http://asmblr.net/scrot/2013-01-12-164304_1366x768_scrot.png
>
> Mac OS X 10.2
> http://asmblr.net/scrot/2013-01-12-164529_1366x768_scrot.png
>
> Mac OS X 10.4 (looks same as without)
> http://asmblr.net/scrot/2013-01-12-164738_1366x768_scrot.png

Ooooh I missed that one. Given that the values should be passed from 
QEMU then perhaps the values in hardware definitions held within QEMU 
are incorrect. Alex?


ATB,

Mark.