[syslinux] Updating BIOS with pxe syslinux memdisk & DOS problems
H. Peter Anvin
hpa at zytor.com
Fri Sep 12 11:16:08 PDT 2003
James Courtier-Dutton wrote:
>>
> There are several reasons why phlash.exe might not be working correctly.
> 1) One reason might be the DOS version. DOS 6.22 might work, but WIN98
> DOS might not. WIN98 DOS handles result codes from DOS calls differently
> than DOS 6.22, and this might be confusing phlash.exe.
>
> 2) I have not looked at exactly how memdisk works, but I assume it tries
> to trick DOS into thinking there is an extra disk present.
> Maybe this simulation is not perfect.
>
> This is all just theory, as I have not looked at the source code, but
> maybe worth considering.
>
It's not really a theory. It's an enumeration of things that might
contribute.
Using Win98 DOS is *known* to cause problems, because bugs in Win98 DOS
that trigger for MEMDISK (as well as several other combinations of things.)
-hpa
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