Nic cannot find a problem after cloning Linux virtual machine

Troubleshoot virtual machine Clone network card loss issues

1. The virtual machine NIC after cloning is displayed as follows

[[Email protected] Desktop]# ifconfig

Lo Link encap:local Loopback

inet addr:127.0.0.1 mask:255.0.0.0

Inet6 addr::: 1/128 scope:host

Up LOOPBACK RUNNING mtu:16436 metric:1

RX packets:120 errors:0 dropped:0 overruns:0 frame:0

TX packets:120 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:9340 (9.1 KiB) TX bytes:9340 (9.1 KiB)

2. The workaround is as follows

(1) Enable eth1 NIC

[[email protected] Desktop]# cd/etc/sysconfig/network-scripts/

Rename eth0 to Eth1

[email protected] network-scripts]# mv Ifcfg-eth0 ifcfg-eth1

[[email protected] network-scripts] #vim/etc/udev/rules.d/70-persistent-net.rules

# PCI Device 0x8086:0x100f (e1000)

subsystem== "NET", action== "Add", drivers== "? *", attr{address} = = "00:0c:29:a9:a0:68", attr{type}== "1", kernel== "eth*" , name= "Eth0"

# PCI Device 0x8086:0x100f (e1000)

subsystem== "NET", action== "Add", drivers== "? *", attr{address} = = "00:0c:29:28:e5:6a", attr{type}== "1", kernel== "eth*" , name= "Eth1"

Modify the MAC address of the ETH1

Replace the attr{address} value of Name= "Eth1" with the MAC address of Ifcfg-eth1

waddr=00:0c:29:28:e5:6a

Restart Network Service

[email protected] network-scripts]# service network restart

Shutting down interface eth1: [OK]

Close Loopback interface: [OK]

Eject loopback interface: [OK]

Pop-up interface eth1:determining if IP address 192.168.4.5 is already on use for device eth1 ...

[OK

(2) Enable eth0 NIC

[[email protected] network-scripts] #vim/etc/udev/rules.d/70-persistent-net.rules

Remove two lines of configuration information for name= "eth0"

Then Name= "eth1" to Name= "eth0" and copy the value of its attr{address}

[email protected] network-scripts]# Vim/etc/sysconfig/network-scripts/ifcfg-eth0

Modify its MAC address to the value of the attr{address} that you just copied

Restart Network Service

[email protected] network-scripts]# service network restart

Shutting down interface eth0: [OK]

Close Loopback interface: [OK]

Eject loopback interface: [OK]

Pop-up interface eth0:determining if IP address 192.168.4.5 is already on use for device eth1 ...

Determine