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症状： 在Vmware克隆一个centos系统，称为B系统，各种服务都正常，除了网络之外。 重启 service network restart 报错： 系统启动日志：Bringing up interface eth0: pcnet32 device eth0 does not seem to be present, delaying initialization. 解决： 查看70-persistent-net.rules文件，此文件里面存放着centos系统认到的网卡信息和系统文件eth*的绑定。 cat /etc/udev/rules.d/70-persistent-net.rules显示 # This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key. # PCI device 0x1022:0x2000 (pcnet32) (custom name provided by external tool) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:c4:79:9b", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" # PCI device 0x1022:0x2000 (pcnet32) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:e7:9d:5e", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"记下网卡名称为eth1的mac地址（即：00:0c:29:e7:9d:5e） 修改 ifcfg-eth0 中的 ONBOOT=off vi /etc/sysconfig/network-scripts/ifcfg-eth0保存退出。 复制ifcfg-etho 为 ifcfg-eth1 cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1再修改 ifcfg-eth1 中的 ONBOOT=on 和 HWADDR=刚才记录的mac地址（即：00:0c:29:e7:9d:5e） vi /etc/sysconfig/network-scripts/ifcfg-eth0保存退出。 最后重启网卡服务 service network restart (责任编辑：IT) |