There is a known issue with the 3c509b cards... yes, they are broken (the bios on the card, not the driver). Silly thing that 3com did - listen to microsoft (and stuffed things for everyone else). If you go from windows to linux without a total poweroff, the hardware address is detected as FF:FF:FF:FF:FF:FF. There are other hiccups with it too, not a good card to have in dual-boot boxes. See Donald's web site at nasa.gov.au (see the output from the driver in the syslogs), last time I looked there was a bit of detail about the problem. Solution is to actually power-off the box when you boot into one or the other. (Well this is what ended up working for me, but IIRC it was only needed one way, eg win->linux or linux->win - I think the former). Good luck. Hope this helps. On Mon Jul 10 2000 at 09:06, Dale Alspach wrote: > I am having an annoying problem with a dual boot RedHat 6.0/win 95 system. > The problem is that the autoprobe seems to cause the 3c509 network adapter > to go back into > PnP mode. This results in the win95 setup losing the card until I boot to > DOS and rerun the disable PnP utility. Both OS's will tolerate > io=0x300 irq=10 > PnP makes no sense on this machine since it is an old 486 with ISA and VL > bus architecture. > > In an effort to stop auto probe I tried fiddling with an options line in > /etc/conf.modules. The results ranged from annoying to disastrous. > According to net-modules.txt there are two options: > ------------------ > 3c509.c: > io = 0 > irq = 0 > ( Module load-time probing Works reliably only on EISA, ISA > ID-PROBE > IS NOT RELIABLE! Compile this driver statically into kernel for > now, if you need it auto-probing on an ISA-bus machine. ) > ------------------------ > > So I tried variations on > alias eth0 3c509 > options 3c509 io=0x300 irq=10 > > It seems that this is not correct because either I get a "failed" during > bootup or a hang in bootup (if only one option is given) > at the eth0 line. I tried using insmod while the system > was up and got similar results including at one point an error message > saying io= is not an option. > > Is there something wrong with the syntax (I tried a comma between the > options)? Is there a different module that supports this card and doesn't > probe? Incidentally with no option line the card installs fine > and in /var/log/messages I get io=0x300 tag 1, irq=10 > (What is tag 1?) > > Dale Alspach > > ********************************************************************* > Email: [EMAIL PROTECTED] OR [EMAIL PROTECTED] > > Post: > Oklahoma State University > Department of Mathematics > 401 Math Science > Stillwater, OK 74078-1058 USA > > Telephone: 405-744-5784 > FAX: 405-744-8275 > ********************************************************************* > > Cheers Tony -=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=- Tony Nugent <[EMAIL PROTECTED]> Systems Administrator, RHCE GrowZone OnLine (a project of) GrowZone Development Network POBox 475 Toowoomba Oueensland Australia 4350 Ph: 07 4637 8322 -=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-=*#*=-