Device eth0 does not seem to be present, delaying initialization

# service network restart
Bringing up interface eth0:  Device eth0 does not seem to be present, delaying initialization.
[FAILED]

I Checked the message buffer of the kernel, it prompted eth0 had been renamed to eth3, and eth1 to eth2.
# dmesg|grep eth
… …
[    4.494092] udev[396]: renamed network interface eth1 to eth2
[    4.549086] udev[396]: renamed network interface eth0 to eth3

So I created the configuration files for eth2 and eth3.
# cd /etc/sysconfig/network-scripts
# mv ifcfg-eth1 ifcfg-eth2
# mv ifcfg-eth0 ifcfg-eth3

Modify the DEVICE to eth2 and eth3 in ifcfg-eth2 and ifcfg-eth3 files respectively using vi editor.

Restart the network servcie, it reminded me they used different MAC address.
# service network restart
Bringing up interface eth3:  Device eth3 has different MAC address than expected, ignoring.
[FAILED]

Get their MAC addresses, and append them to ifcfg-eth2 and ifcfg-eth3 files.
# cat /sys/class/net/eth2/address >> ifcfg-eth2
# cat /sys/class/net/eth3/address >> ifcfg-eth3

Use vi editor to change the MAC addresses to the appended.

Restart the network service again, they worked.

 

 

With Thanks & Regards,

Rajesh S