On 17/03/2019 01:09, Quinn Plattel wrote:
Well, I have now tested the same two cards with the same two roms on a
different older system. Here is the results:
D-Link DFE-530TX:
============================
iPXE (http://ipxe.org) 00:10.0 D400 PCI2.10 PnP D400
iPXE (PCI 00:10.0) starting execution...ok
iPXE initialising devices...ok
iPXE 1.0.0+ (b6ffe) -- Open Source Network Boot Firmware - http://ipxe.org
Features: DNS HTTP TFTP ELF MBOOT PXE bzImage Menu PXEXT
iPXE>
=============================
3Com 905B:
=============================
iPXE (http://ipxe.org) 00:10.0 D400 PCI2.10 PnP D400
iPXE (PCI 00:10.0) starting execution...1B101B10 000D4CF4 00000712
Installation failed - cannot continue
=============================
So, results are the same, except, on this older system, I do not seem to
see any addresses advertised in the banner part of the roms.
Why is that?
Your older system does not support PMM. iPXE will read the ROM image
directly from the BIOS option ROM area (and will therefore require more
option ROM space than if PMM were present), and will use 0x100000 as the
temporary decompression area.
It looks as though your 3c905b is experiencing a genuine CRC32 checksum
failure when reading the ROM image, i.e. the image as read back from the
expansion ROM is corrupted.
Michael
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