用ESX克隆虚拟机的时候,会发现网卡编号变化了,原来的eth0,eth1不见了,而出现了eth2,eth3。我估计可能的原因是ESX在创建虚拟机时,会重新创建网卡,当系统发现网卡和配置不一样时,就新建了新的网络接口。
可以用下面的方法把eth0改回来:
修改70-persistent-net.rules文件- [root@redhat89178 ~]# cat /etc/udev/rules.d/70-persistent-net.rules
- # 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 0x15ad:0x07b0 (vmxnet3)
- # 把原来的配置注释掉
- #SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:9c:00:99", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
- # PCI device 0x15ad:0x07b0 (vmxnet3)
- # 把新出现的eth2改为eth0
- SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:9c:00:9a", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
更改网卡配置文件- [root@redhat89178 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
- DEVICE="eth0"
- BOOTPROTO=static
- # 把MAC地址改成新的地址
- HWADDR="00:50:56:9C:00:3A"
- ...
更新主机名- [root@redhat89178 ~]# cat /etc/sysconfig/network
- NETWORKING=yes
- HOSTNAME=<new_hostname>
- GATEWAY=10.10.10.1
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