用Oracle VirtualBox 安装 CentOS 6.0 后连接不上网络
????用Oracle VirtualBox 安装 CentOS 6.0?后，网络连接不上 service network restart 出现以下提示
????? evice eth0 does not seem to be present
使用ifconfig 命令只能看到lo? 的状态信息，? 使用ifconfig -a?? 如下
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eth4????? Link encap:Ethernet? HWaddr 00:0C:29:75:9D:A8
????????? inet addr:192.168.1.133? Bcast:192.168.1.255? Mask:255.255.255.0
????????? inet6 addr: fe80::20c:29ff:fe75:9da8/64 Scope:Link
????????? UP BROADCAST RUNNING MULTICAST? MTU:1500? Metric:1
????????? RX packets:4377 errors:2 dropped:3 overruns:0 frame:0
????????? TX packets:988 errors:0 dropped:0 overruns:0 carrier:0
????????? collisions:0 txqueuelen:1000
????????? RX bytes:451841 (441.2 KiB)? TX bytes:78718 (76.8 KiB)
????????? Interrupt:19 Base address:0x2000
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:16436? Metric:1
????????? RX packets:246 errors:0 dropped:0 overruns:0 frame:0
????????? TX packets:246 errors:0 dropped:0 overruns:0 carrier:0
????????? collisions:0 txqueuelen:0
????????? RX bytes:27552 (26.9 KiB)? TX bytes:27552 (26.9 KiB)
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?? eth0变eth4了，晕，想了半天，明白了，是因为我装linux后，把linux虚拟盘复制了4次，以满足我的多系统的测试。 所以复制后的网卡分别变成1-4了。
??? 我是这样解决的，
先把脚本eth0 改成 eth4
[root@linux ~]# mv? /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth4?
[root@linux ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth4
DEVICE="eth4"
//绑定网卡mac地址
HWADDR="00:0C:29:75:9D:A8"??#(注意，这是原来eth0的MAC 要改成ifconfig -a 后显示的 eth4的MAC哦）
NM_CONTROLLED="yes"
ONBOOT="yes"
BROADCAST="192.168.1.255"
BOOTPROTO="static"
IPADDR="192.168.1.133"
NETMASK="255.255.255.0"
NETWORK="192.168.1.0"
GATEWAY="192.168.1.1"
?
????? 保存后
service network restart 解决问题
