How do I scan my pci bus?
 

I just added a second video card and I'm trying to get the pci address...

The following command did not work after telinit 3:

/etc/init.d/xdm stop

I was logged in as root and got permission denied... !

You got permission denied because it was in use. Were you doing this in a command mode (ie: no GUI) or at an xterm/eterm/konsole/whatever?

Try as root
lspci -v
the output you get is usually what is necessary to configure new hardware
Ciao

you might have to use
/sbin/lspci
if you are using a red hat style distro, which doesnt have sbin in the path

I can't remember if the other Redhats had this but Fedora has a command:
scanpci