When I upgraded to 810 alpha 2.20 my boot up acted a little differently.
8139cp loaded but I didn't get the comment about rtl8139/8139C/8139C+ (rev.10) and chipset incompatiblity.
8139cp was v1.3 Mar 22, 2004.
8139too did not try to load.
Everything else was the same. Eth0, traceback, 60 second timeout, can't open /tmp/eth0-conf plus a kernel panic message.
So, I re-built from scratch, again, tried to boot the MD again, same result as above.
Now, I will try to force the 8139too to run and see what happens.