[NCLUG] Oracle system help

[Mark Fassler]

On Thu, Jan 31, 2002 at 11:15:28PM -0700, Steve Roths wrote:

> Right now, I seem to have lost eth0 altogether.  I found this out while 
> tinkering with the oracle networking configs.  I couldn't connect with 
> 192.168.0.100 any more.  It had been working up until this morning, and 
> I had a web site up for several days with Apache. (not the oracle 
> Apache, but I did enable that this morning, also, just couldn't connect 
> with it)
> 
> ifconfig returns only for 127.0.0.1
> 
> ping 192.168.0.100 returns 'Network is unreachable'
> 
> linuxconf and the gnome control-panel settings are the same as when the 
> connection was working, but I'm getting 'Delaying eth0 initialization' 
> errors at reboot and when I 'activate' the interface with 
> control-panel.

I get that error when the OS can't get the driver to talk the hardware.  
If you're running a standard RedHat the kernel is probably modular, so 
most of the drivers are loaded as modules and not built into the kernel.

As root, do "lsmod".  You should see a listing of modules.  I *think* that 
your ethernet card uses the ne2k-pci module.  (It might be the 8139too 
module.)

If either of these aren't listed, you can try to load the drivers by hand, 
for example:  "modprobe ne2k-pci".  If you don't get an error message, it 
probably worked and you can do an "lsmod" to see it.  Otherwise the error 
message might give you a hint.  

By default, error messages go into /var/log/messages.   Look in the end of 
that file for any clues.  

One handy source of info is the file /proc/pci  -- this will list all the 
PCI devices on your system.  It's mostly human readable (well, totally 
human readable if you understand the PCI spec... :-)  

One file to check is /etc/modules.conf -- there should be a line in there 
like this:
 alias eth0 ne2k-pci

If all else fails, you can try to use your GUI tools to delete the 
interface and re-add it.  

--
Mark Fassler
fassler at monkeysoft.net