Nic undetected after installing RedhatLinux using pci=nommconf
Hiii there,
Im tejas and ve been using linux si nce 1 year.
I faced a new problem today during redhat 9 installation..
Mine is a IDE disk and i was tryin to install redhat 9.0
and my system hanged at the following pcirobing pci hardware(bus00)

After goggling i found a solution which is below

1)ive installed using the parameter "linux all-generic-ide irqpoll pci=nommconf"

I ve tried the above kernel parameter and installation was successful,
and i ve edited the kernel paramters during the boot .

i have a fresh copy of redhat linux

But now my system is unable to detect NIC card..
where i entered "ifconfig eth0 10.133.55.33",bang came the error
"siocsifaddr:no such device"

Kindly send me the consequences and of using the above parameter i.e' ("linux all-generic-ide irqpoll pci=nommconf")

Waiting for quick replies
Replies would be apppreciated..
thank you in advance

42 views not even a single aswer

Not sure myself what the flags you used mean entirely, except for "pci=nommconf" which tells the kernel NOT to use MMconfig to identify PCI devices, but instead to use the "Direct" method and/or "BIOS" calls for identifying PCI devices.

Surely a quick Google can supply you with the functions of the other flags.

What happens now if you try booting the system with NONE of these flags?
How about if you remove one or more of them? Like remove the "irqpoll"?
Try changing the "pci=nommconf" to "pci=direct" or "pci=bios" or "pci=nodirect" or "pci=nobios" and see how that goes. (Note that I don't know all of, nor necessarily the right syntax of, all the possible boot parameters you could use. Again, Google is your friend.)

If you could possibly do a diff (compare) the configuration of your OLD kernel, to that of your new installations kernel, you might just come across the exact promlem/solution.

Finally, what will ultimately become important is what type of NIC it is, and whether you have the support for it in the kernel build. Since it worked on the older system, chances are good it will work again, once you get past this issue of it being undetected.

Meanwhile, also please post for us the output of the command "lspci" from a root console. That may get us started.

Hey. as i have installed the os using these kernel flags
i have to give the same parameters in grub.conf ,else i wopnt work

system will hang at
"loading kernel" message

>>> Meanwhile, also please post for us the output of the command "lspci" from a root console. That may get us started.

Is your computer made 2002 or earlier? Red Hat 9 was released in the beginning of 2003, obviously they did not include support for future hardware.