After CentOS7 version of the system default format beginning with the name of the card eno format, in some cases we need to modify this format eth format.
1, [root @ localhost] # vi / etc / sysconfig / grub red add the following fields
GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rd.lvm.lv=centos/usr rhgb quiet net.ifnames=0 biosdevname=0" GRUB_DISABLE_RECOVERY="true"
2. After modification, execute the following commands:
-o-Grub2 mkconfig /boot/grub2/grub.cfg
Note: If you install the operating system is UEFI mode, executing the command error, can not find the file, execute the following command:
-o-Grub2 mkconfig /boot/efi/EFI/centos/grub.cfg
3, modify udev card file 70-persistent-net.rules file, or delete or rename the file directly, (I deleted directly in the operation, no effects were observed)
[root@localhost ]# vi /etc/udev/rules.d/70-persistent-net.rules 。 SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:13:32:0b:ac:58", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:13:32:0b:ac:59", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:13:32:0b:ac:5a", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:13:32:0b:ac:5b", ATTR{type}=="1", KERNEL=="eth*", NAME="eth3"
Note: MAC address through ifconfig |, grep ether to find this command.
4, revising each corresponding NIC configuration file eth name / etc / sysconfig / network-scripts / ifcfg- *
mv ifcfg-enp4sp0 ifcfg-eth0
5, modified / etc / sysconfig / network-scripts / Configuration card configuration file corresponding to the content, and the DEVICE NAME parameters can be modified to eth *.
[root@localhost ]# vi /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes NAME=eth0 DEVICE=eth0 ONBOOT=yes IPADDR=192.168.1.100 PREFIX=24
6, reboot the device reboot
7, the above-described operation is carried out after modifying the operating system is installed, it can be modified directly in the operating system installation process easier:
After the boot into the CD-ROM system selection interface as follows:
Select Install CentOS 7 do the transport , press the Tab key, add the following end of the line parameters net.ifnames = 0 biosdevname = 0 then enter the next step, after installation, the system defaults to the name of the card mode eth
