1. Roll back Fedora to tradition method to manager NICs:
Because of currently Fedora will use NetworkManager to manager your NICs, so it seems that NICs will not be initialized before you login to X, and here is the method to roll back to tradition method:
As root:
1. Disable NetworkManager:
# chkconfig NetworkManager off
2. Enable tradition network method:
# chkconfig network on
3. Navigated to /etc/sysconfig/network-scripts, and to generate ifcfg-ethX file as following:
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
4. Reboot your machine.
2. Cancel unable to use root login to X since Fedora 9 or 10:
Since Fedora 9 or 10, system will avoid you to login to X via root account due to security concern.
However, you can disable this by some steps as following:
1. Navigated to /etc/pam.d
2. vi gdm
auth required pam_succeed_if.so user != root quiet
->
#auth required pam_succeed_if.so user != root quiet
3. vi gdm-password
auth required pam_succeed_if.so user != root quiet
->
#auth required pam_succeed_if.so user != root quiet
Then it works.
