linux redhat虚拟机上网卡获取ip地址失败（网卡设置为自动获取ip的）
重启network服务提示如下信息：
Bringing up interface eth0: RTNETLINK answers: No such device
查看/var/log/message下日志信息
un 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth1 ...
Jun 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
Jun 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth1 ...
Jun 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
Jun 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth1 ...
Jun 9 04:06:16 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Jun 9 04:06:31 rac1 nm-system-settings: ifcfg-rh: error: Missing or invalid IP4 prefix '0'
查看/etc/sysconfig/network-scripts/ifcfg-eth* 里面的文件
[root@rac1 network-scripts]# cat ifcfg-eth1
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth1
HWADDR=00:0C:29:C9:C9:68
ONBOOT=yes
HOTPLUG=no
发现少了BOOTPROTO=dhcp这条语句
添加这句内容到配置文件就ok啦！！
