The new Linux virtual machine cannot find the eth0 solution

The new Linux virtual machine is configured with Vi/etc/sysconfig/network-scripts/ifcfg-eth0:

Then use Ifconfig to see if the IP is not eth0, only lo and virbr0

Where lo is a loopback device. This is a necessary device, so long as Linux is enabled for support of the network, it will have this device.

And Virbr0 is a virtual network connection port.

Run Ifconfig-a also no eth0

There are several ways to find it online.

Running ifconfig eth0 up eth0 Nic is still not working, deleting the/etc/udev/rules.d/70-persistent-net.rules file does not work

After thinking maybe the existence of the virtual network card can cause eth0 to fail to activate, try to unload the virbr0 through yum-y remove Libvirt reboot the system does not work

Finally yum-y remove libirt* after reboot eth0 activated

The new Linux virtual machine cannot find the eth0 solution