Re: [Etherboot-developers] [COMMIT] 5.1.2+ boot from disk.

[Michael B. <mb...@fe...>]

On Fri, 30 Aug 2002, Ken Yap wrote:
> >And then the big mystery.  NBI's appear to work for you, and not for
> >others.  Why and where their first packet is getting corrupted is a
> >mystery.
> I think it's because I'm using mkelf-linux and they are using
> mknbi-linux. If that's the case then I think the FreeDOS image will crash
> the same way as theirs (DOS has to be a real mode entry image).

OK, there's no corruption in the first packet.  I've added a little hex
dump utility to misc.c - call as hex_dump(data,len) and it'll produce a
nicely formatted hex dump of an area of memory, complete with a more-style
pager.  It's #ifdeffed on DEBUG_UTILS, so no worries about code bloat.

Hex dump of the 512-byte data block passed to tagged_probe() shows that it
is identical to the first 512 bytes of the .nbi file, so the drivers are
totally ruled out as a source of the problem.

Michael Brown
http://www.fensystems.co.uk