[syslinux] ISOLINUX - specify memory address?

[H. Peter Anvin]

Falcon4 wrote:
> I'm wondering if there's a way to specify the memory address that 
> ISOLINUX loads its image into. I have a couple "all-in-one" boot CDs 
> that use ISOLINUX to load the boot disk images, like Memtest-86, etc, 
> that can't load because the memory it's going to be loaded to test is 
> bad. For example, one I'm trying to load is a laptop with onboard RAM 
> that's bad past the 256mb mark that, when I try to load an image, says 
> something like "decompression error". Then, there's a computer that has 
> DIMM slot problems, and I need to figure out what stick isn't seated 
> right. When I try to load Memtest-86, it gives that same decompression 
> error because it's trying to load it into the higher memory addresses, 
> it seems.
> 
> How can I tell it not to use that RAM?
> 

"mem=256M" would do it.