Hello.
I had the same problem. The loopback interface couldn't load.
The machine is a Laptop VAIO PCG-GRX626 with a network card
identified like:
Intel Corp. 82801CAM (ICH3) Chipset Ethernet Controller
Intel® PRO/100 VE adapter
I downloaded the driver from
www.intel.com: e100-2.1.29.tar.gz
http://downloadfinder.intel.com/scri...p?Prod_nm=e100
and followed the instructions in the README file.
rpmbuild -tb e100-2.1.29.tar.gz
cp /usr/src/redhat/RPMS/i386/e100-2.1.29-rh80.i386.rpm ./
rpm -i e100-2.1.29-rh80.i386.rpm
netconfig
Now the ethernet works great. It boots well and detects when the ethernet cable is not connected.
So my recomendation is that you get the drivers directly from intel.