弹出界面eth0 错误：激活链接失败：The connection is not for this device

查看有无网卡配置文件eth0和lo

[root@pwd network-scripts]# ls
ifcfg-eth0   ifdown-eth   ifdown-isdn    ifdown-sit     ifup-bnep  ifup-ipv6   ifup-post    ifup-tunnel       network-functions
ifcfg-lo     ifdown-ib    ifdown-post    ifdown-tunnel  ifup-eth   ifup-isdn   ifup-ppp     ifup-wireless     network-functions-ipv6
ifdown       ifdown-ippp  ifdown-ppp     ifup           ifup-ib    ifup-plip   ifup-routes  init.ipv6-global
ifdown-bnep  ifdown-ipv6  ifdown-routes  ifup-aliases   ifup-ippp  ifup-plusb  ifup-sit     net.hotplug
[root@pwd network-scripts]# vim ifcfg-eth0 
DEVICE=eth0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
ONBOOT=yes
NAME=eth0
BOOTPROTO=none
ONBOOT=yes
DNS2=8.8.8.8
TYPE=Ethernet
DNS1=114.114.114.114
NM_CONTROLLED=yes
PEERDNS=yes
IPV6INIT=no
IPADDR=192.168.110.131
NETMASK=192.168.110.131
GATEWAY=192.168.110.2

查看网络ip等设备信息

[root@pwd network-scripts]# ifconfig
eth1      Link encap:Ethernet  HWaddr 00:0C:29:60:CB:3D  
          inet addr:192.168.110.131  Bcast:192.168.110.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe60:cb3d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10829 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6409 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:14176906 (13.5 MiB)  TX bytes:459600 (448.8 KiB)

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:32 errors:0 dropped:0 overruns:0 frame:0
          TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2080 (2.0 KiB)  TX bytes:2080 (2.0 KiB)

可以看见ifconfig中网卡设备名是eth1

更改配置文件eth0改成eth1

[root@pwd network-scripts]# vim ifcfg-eth0 

DEVICE=eth1
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
ONBOOT=yes
NAME=eth0
BOOTPROTO=none
ONBOOT=yes
DNS2=8.8.8.8
TYPE=Ethernet
DNS1=114.114.114.114
NM_CONTROLLED=yes
PEERDNS=yes
IPV6INIT=no
IPADDR=192.168.110.131
NETMASK=192.168.110.131
GATEWAY=192.168.110.2

成功

[root@pwd network-scripts]# service network restart
正在关闭接口 eth0： 设备状态：3 （断开连接）
                                                           [确定]
关闭环回接口：                                             [确定]
弹出环回接口：                                             [确定]
弹出界面 eth0： 活跃连接状态：已激活
活跃连接路径：/org/freedesktop/NetworkManager/ActiveConnection/1
                                                           [确定]