[LinuxBIOS] compile errors on tyan S2881

[Stefan Reinauer]

* yhlu <yinghailu at gmail.com> [051202 23:07]:
> In MB Option.lb, We define FALLBACK_SIZE=0x40000 ===> it means 256K
> for Fallback image.
> 
> In the Fallback last 64K will be linuxbios_rom(crt0.S and init.o),

only crt0.S and init.o? Are they really that big? What about packing a
really silent LinuxBIOS image without payload in 32k again? I remember
some mainboards allowed that.

Say I want a system with a flash utility in fallback (so FALLBACK_SIZE
would be 64k) and the real payload in normal, so I'd want 448k for that.
Possible?

> For Normal image, if the total image is 512K, the Normal image is
> about 256K too.
> but some time we need to allocate 48K from it to ATIX.rom...
> then the paload space will be small..
 
I'd rather want a smaller Fallback than a smaller normal. Fallback is
thought of as a recovery thing only.

> anyway, you can set ROM_IMAGE_SIZE to any size
> 1. >64K
> 2. ROM_IMAGE_SIZE-64K > linuxbios_ram size
> 3. leave enough size for payload...

thanks for the explanation.