Re: [CentOS] No eth0 on centos 6.2

On 01/04/2012 06:52 PM, Jeff wrote:

Just installed centos 6.2. I run and ifconfig -a I see and em1 em2 and lo interface. If I go to /etc/sysconfig/network-scripts, I don't see an ifcfg-eth0. If I run ifup eth0 it comes back with "Device eth0 does not seem to be present, delaying initialization". Anybody have a clue? Thanks in advance.

The names of the devices are starting to change. The 'emX' are likely your interfaces. If you check you should have ifcfg-emX files. If you would like to rename them, you can follow this;

https://alteeve.com/w/Changing_the_ethX_to_Ethernet_Device_Mapping_in_EL6_an...

That talks about change eth0 <-> eth1, but it can just as easily be em0 <-> eth0.