Linux virtual machine clone, boot system discovery NIC fails to start

First, the Linux virtual machine cloning, the boot system found that the network card could not start, and then ifup eth0 network card will prompt (Device eth0 does not seem to be present, delaying initialization.) failed.

Second, the treatment method:

Method One:

1, [[email protected] ~]# Vim/etc/udev/rules.d/70-persistent-net.rules

# This file is automatically generated by the/lib/udev/write_net_rules
# program, run by the Persistent-net-generator.rules rules file.
#
# can modify it, as long as you keep each rule to a single
# line, and change is only the value of the Name= key.
# PCI Device 0x1022:0x2000 (Pcnet32)
subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "08:00:27:7e:8c:e7″, attr{type}==" 1″, KERNEL== "eth*" , name= "Eth0″
# PCI Device 0x1022:0x2000 (Pcnet32)
subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "08:00:27:30:c2:57″, attr{type}==" 1″, KERNEL== "eth*" , name= "Eth1″

Record the MAC address of the eth1 Nic 08:00:27:30:c2:57

Next, open the/etc/sysconfig/network-scripts/ifcfg-eth0

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

Change the device= "Eth0″ to Device=" Eth1″,
Change the hwaddr= "08:00:27:7e:8c:e7″ to the MAC address above hwaddr=" 08:00:27:30:c2:57″

3, # Ifdown eth0 && ifup eth0 or #/etc/init.d/networkrestart or service network restart

Method Two:

1. Delete (/etc/sysconfig/network-scripts/ifcfg-eth0) the network card MAC address line (hwaddr=) data.

2, after the last restart of the operating system is normal. See if (ifconfig) is normal. (This method is not recommended)

Linux virtual machine clone, boot system discovery NIC fails to start