Moved a FC10 drive between two systems - eth0 not recognized

[Tom H]

> On 10/14/2009 08:11 PM, Robert Moskowitz wrote:

>> I have 2 Compaq SFFs one old, the other older.  The just old one is my
>> production server.  The older one is my
>> test server.  Both have 512Mb memory.  Both, I believe, have Intel
>> ethernet on the system board, but different versions.

>> 2 years ago when I moved a Centos 5 drive from the development to the
>> production server, everything worked fine.  Yes I ran system-config-display
>> to get it to recognize the new video (I run inittab 3 for the most part, so
>> this was an extra step).

>> Now with FC10, the production server's ethernet is not recognized.

>> ifconfig
>> only shows L0

>> I tried system-config-network and it recognized something ( just the
>> ifcfg-eth0 file?) and saved and updated the ifcfg-eth0 file.  I rebooted the
>> system and still no eth0 on the system. So for now, I put the drive in the
>> development system and am running from that, but the production system has
>> twice the CPU speed.
>> So what is the magic as there is no longer kudzu?

On Fri, Oct 16, 2009 at 7:37 AM, Joe <fedora at root-files.de> wrote:
> remove MAC in ifcfg-eth0 and restart network.

I think that F10 uses udev and that the latter overrides ifcfg (I
think!), so if the above does not work:

Run "lshw -c network"

Change "ATTR{address}" in "/etc/udev/rules.d/70-persistent-net.rules"
to the MAC address that lshw outputs.

(There is a way of re-generating the net rules but I do not know it.)