Because of some reasons u need to back to old eth naming of your network devices . How to do it in easy way. . let me tell you about my invironement.
My system is CentOS 8
My network device enp0s3
1-Disable Consistent Network Device Naming
How to disable Consistent Network Device Naming in Centos 7 of 8 ?
Edit etc/default/grub and ppend both the net.ifnames=0 and biosdevname=0 parameter values to the file’s GRUB_CMDLINE_LINUX parameter:
vi /etc/default/grub
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="resume=/dev/mapper/cl-swap rd.lvm.lv=cl/root rd.lvm.lv=cl/swap rhgb quiet net.ifnames=0 biosdevname=0" GRUB_DISABLE_RECOVERY="true" GRUB_ENABLE_BLSCFG=true
2-Rebuild the /boot/grub2/grub.cfg
You can do is with running grub2-mkconfig
[root@osradar-lvm rules.d]# grub2-mkconfig -o /boot/grub2/grub.cfg Generating grub configuration file ... done
If your system booting with UEFI
#grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
3-mv Old device to new device config
mv /etc/sysconfig/network-scripts/ifcfg-enp0s3 /etc/sysconfig/network-scripts/ifcfg-eth0
Edit the network config file
vi /etc/sysconfig/network-scripts/ifcfg-eth0
Change d
TYPE=”Ethernet”
PROXY_METHOD=”none”
BROWSER_ONLY=”no”
BOOTPROTO=”dhcp”
DEFROUTE=”yes”
IPV4_FAILURE_FATAL=”no”
IPV6INIT=”yes”
IPV6_AUTOCONF=”yes”
IPV6_DEFROUTE=”yes”
IPV6_FAILURE_FATAL=”no”
IPV6_ADDR_GEN_MODE=”stable-privacy”
NAME=”eth0″
UUID=”07922c3e-bd5c-414e-99b8-697e137f36a4″
DEVICE=”eth0″
ONBOOT=”yes”
~
4-Reboot the Server
#reboot
