Question:
Some Dell servers found that the name of the network card changed to EM1 after installing Linux operating system.
terms of settlement:
Modify the name of the network card to eth0. Take CentOS operating system as an example.
1： Modify system grub
vi /boot/grub/grub.conf #Add after kernel parametersbiosdevname=0
kernel /vmlinuz-2.6.32-573.7.1.el6.x86_64 ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM biosdevname=0 rhgb quiet
:wq! #Save exit
2、 Modify the configuration file of network card naming rules of udev
vi /etc/udev/rules.d/70-persistent-net.rules #Modification
The server has four network cards, and the name of the network card identified is:em1、em2、em3、em4（The EM code starts with 1, there is no em0），
We need to put the topEM1 changed to eth0Em2 was modified to eth1, EM3 to eth2, and em4 to eth3
:wq! #Save exit
3、 Modify the name of the current network card profile
cd /etc/sysconfig/network-scripts/ #Enter the network card profile directory
mv ifcfg-em1 ifcfg-eth0 #Rename
mv ifcfg-em2 ifcfg-eth1
mv ifcfg-em3 ifcfg-eth2
mv ifcfg-em4 ifcfg-eth3
4、 Modify the content of network card configuration file and change em to eth
cd /etc/sysconfig/network-scripts/ #Enter the network card configuration file directory
vi ifcfg-eth0 #Change EM1 to eth0
vi ifcfg-eth1 #Modify em2 to eth1
vi ifcfg-eth2 #Modify EM3 to eth2
vi ifcfg-eth3 #Modify em4 to eth3
:wq! #After modification, save and exit
5、 Restart the system to make the above changes take effect
Shutdown – r now ා restart
At this point, the CentOS system modifies the network card EM1 to eth0.