Failed to start LSB: Bring up/down networking 問題

一、執行 service network restart 出現如下錯誤html

Restarting network (via systemctl): Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details.centos

二、根據上面的提示，執行「systemctl status network.service」輸出如下的相似信息：dom

[root@localhost ~]# systemctl status network.serviceoop

network.service - LSB: Bring up/down networkingflex

Loaded: loaded (/etc/rc.d/init.d/network)centos7

Active: failed (Result: exit-code) since三 2014-11-05 15:30:10 CST; 1min 5s agospa

11月 05 15:30:10 localhost.localdomain network[2920]: RTNETLINK answers: File existsrest

11月 05 15:30:10 localhost.localdomain network[2920]: RTNETLINK answers: File existscode

11月 05 15:30:10 localhost.localdomain network[2920]: RTNETLINK answers: File existshtm

11月 05 15:30:10 localhost.localdomain network[2920]: RTNETLINK answers: File exists

11月 05 15:30:10 localhost.localdomain systemd[1]: network.service: control process exited, code=exited status=1

11月 05 15:30:10 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.

11月 05 15:30:10 localhost.localdomain systemd[1]: Unit network.service entered failed state.

三、解決的辦法（因爲centos7中沒有70-persistent-net.rules這個文件，複製出來的虛擬機(vmware）須要修改mac地址），就是修改mac地址。

或者註釋掉MAC地址

四、如何查看centos7複製出來的虛擬機的mac地址，須要執行「ip addr」，輸出以下的相似信息：

[root@localhost ~]# 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: eno16777736:

link/ether00:0f:19:10:12:f1 brd ff:ff:ff:ff:ff:ff

inet 192.168.38.135/24 brd 192.168.38.255 scope global dynamic eno16777736

valid_lft 1681sec preferred_lft 1681sec

inet6 fe80::20c:11aa:ae11:4fe4/64 scope link

valid_lft forever preferred_lft forever