vmware复制centos镜像后network服务启动失败
复制一个vmware镜像文件夹后，通过vmware打开新的镜像，执行systemctl status network，发现状态为failed，如下：
| [root@centos7 network-scripts]# systemctl status network ● network.service - LSB: Bring up/down networking Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled) Active: failed (Result: exit-code) since 三 2019-02-20 12:29:09 CST; 9s ago Docs: man:systemd-sysv-generator(8) Process: 18459 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 network[18459]: RTNETLINK answers: File exists 2月 20 12:29:09 centos7 systemd[1]: network.service: control process exited, code=exit...s=1 2月 20 12:29:09 centos7 systemd[1]: Failed to start LSB: Bring up/down networking. 2月 20 12:29:09 centos7 systemd[1]: Unit network.service entered failed state. 2月 20 12:29:09 centos7 systemd[1]: network.service failed. |
通过journalctl -xe查看服务日志如下：
| [root@centos7 network-scripts]# journalctl -ex 2月 20 11:20:21 centos7 systemd[1]: Stopped Network Manager. -- Subject: Unit NetworkManager.service has finished shutting down -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit NetworkManager.service has finished shutting down. 2月 20 11:20:21 centos7 polkitd[5446]: Unregistered Authentication Agent for unix-process:611 2月 20 11:20:33 centos7 polkitd[5446]: Registered Authentication Agent for unix-process:6117: 2月 20 11:20:33 centos7 systemd[1]: Starting LSB: Bring up/down networking... -- Subject: Unit network.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit network.service has begun starting up. 2月 20 11:20:33 centos7 network[6123]: 正在打开环回接口： [ 确定 ] 2月 20 11:20:34 centos7 network[6123]: 正在打开接口 eno16777737： ERROR : [/etc/sysconfig 2月 20 11:20:34 centos7 /etc/sysconfig/network-scripts/ifup-eth[6250]: 设备 eno16777737 似乎 2月 20 11:20:34 centos7 network[6123]: [失败] 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 network[6123]: RTNETLINK answers: File exists 2月 20 11:20:34 centos7 systemd[1]: network.service: control process exited, code=exited stat 2月 20 11:20:34 centos7 systemd[1]: Failed to start LSB: Bring up/down networking. -- Subject: Unit network.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit network.service has failed. -- -- The result is failed. 2月 20 11:20:34 centos7 systemd[1]: Unit network.service entered failed state. 2月 20 11:20:34 centos7 systemd[1]: network.service failed. 2月 20 11:20:34 centos7 polkitd[5446]: Unregistered Authentication Agent for unix-process:611 |
重点是“设备 eno16777737 似乎...”这一行
解决办法：
1、查看ip信息
$ ip addr
| [root@centos7 network-scripts]# ip addr 1: lo: link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens33: link/ether 00:0c:29:c9:ad:8a brd ff:ff:ff:ff:ff:ff inet 192.168.13.117/24 brd 192.168.13.255 scope global noprefixroute dynamic ens33 valid_lft 85926sec preferred_lft 85926sec inet6 fe80::20c:29ff:fec9:ad8a/64 scope link noprefixroute valid_lft forever preferred_lft forever |
发现网卡名称为ens33，进入/etc/sysconfig/network-scripts目录，发现没有“ifcfg-ens33”这个文件，而是ifcfg-eno16777737 这个文件，原因找到了，是因为复制的镜像是之前的网卡名称，与本机的不对应。
2、需要将ifcfg-eno16777737文件名修改成ifcfg-ens33，另外需要修改文件内容中的“eno16777737”，都修改成“ens33”。
3、重启服务或者重启电脑
如果执行systemctl restart network发现还失败，就reboot重启电脑就可以解决。
目前我采用桥接网络方式，并且采用dhcp动态获取ip地址 ，如果是nat连接或者指定了ip地址，则需要修改ifcfg-ens33文件内容，将里面的MAC地址这一行删除，然后重启服务也可以解决。
转载来源：http://www.16boke.com/article/detail/250
Linux CentOS