从vware里克隆出的CentOS Linux，ifconfig 没有ip地址和重启 Device eth0 does not seem to be present_centos ifconfig 没有etho not seem to be present-优快云博客

本文链接：https://blog.youkuaiyun.com/qishuo_java/article/details/50189605

本文详细介绍了在 CentOS Linux 中遇到网卡 eth0 未出现的问题，包括检查 ip 地址、修改 /etc/udev/rules.d/70-persistent-net.rules 文件设置 eth0 的 MAC 地址、调整 /etc/sysconfig/network-scripts/ifcfg-eth0 配置文件以正确指定网卡设备，并最终通过重启网络服务解决问题的全过程。

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在VMware里克隆出来的CentOS Linux

ifconfig...没有看到eth0.

怀疑是网卡设置的问题设置成桥接,rebooot还是不行

检查ip地址

vi /etc/sysconfig/network-scripts/ifcfg-eth0 发现没有问题，然后service network restart重启网卡又报下面错误:

service 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]

CentOS Linux解决Device eth0 does not seem to be present

解决办法：

打开/etc/udev/rules.d/70-persistent-net.rules内容如下：

# vi /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 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:8f:89:9
7", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:50:bd:1
7", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

记录下，eth1网卡的mac地址00:0c:29:50:bd:17

接下来，打开/etc/sysconfig/network-scripts/ifcfg-eth0

# vi /etc/sysconfig/network-scripts/ifcfg-eth0

将 DEVICE="eth0" 改成 DEVICE="eth1" ,
将 HWADDR="00:0c:29:8f:89:97" 改成上面的mac地址 HWADDR="00:0c:29:50:bd:17"（把HWADDR注释掉也行 #HWADDR）

最后，重启网络

# service network restart
或者

# /etc/init.d/network restart

正常了。