<![CDATA[静怡家园]]> http://www.zhanghaijun.com/index.php zh-cn http://www.zhanghaijun.com/post// <![CDATA[CentOS 6.8-X86_64解决Device eth0 does not seem to be present]]> 碟舞飞扬 <webmaster@zhanghaijun.com> Fri, 29 Jul 2016 06:59:09 +0000 http://www.zhanghaijun.com/post//

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:65536  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:448 (448.0 b)  TX bytes:448 (448.0 b)


执行 /etc/init.d/network restart

Shutting down loopback insterface:                     [  OK  ]
Bringing up loopback insterface:                          [  OK  ]
Bringing up interface eth0:  Device eth0 does not seem to be present,delaying initialization.  
                                                                      [FAILED]

执行 ifconfig -a 发现没有eth0，却有一个eth1，原来是mac地址变化了，知道是什么问题就好办了，不重启机器你可以把eth1的mac地址记下，cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1 然后把里面的eth0改为eth1，HWADDR改为eth1的mac地址，然后service network restart或ifup eth1 就可以了。

如果你的机器可以重启，可以使用以下方法：
vi /etc/sysconfig/network-scripts/ifcfg-eth0 把里面的HWADDR改为eth1的mac地址之后保存。
vi /etc/udev/rules.d/70-persistent-net.rules 你会发现有两行配置，把eth0的那一行删除，把eth1改为eth0之后保存，类似于下面这样：

# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:ce:cb:ee", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"


使用第二种方法的可以把/etc/sysconfig/network-scripts/ifcfg-eth1删了，或者设置为开机不启动，然后执行init 6 或者reboot重新启动虚拟机，虚拟机重新启动之后网络正常了。

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