[linux] 查看网卡UUID

virtualbox复制了虚拟机，重新初始化网卡后，需要对/etc/sysconfig/network-scripts/ifcfg-eth0更新UUID值，虽然不改暂时也没发现有问题。

网上查找需要nmcli工具进行查看。

　　1.首先我们查看一下nmcli是哪个软件包提供的

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[root@localhost ~]# yum provides "*/nmcli" Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.163.com  * extras: mirrors.163.com  * updates: mirrors.163.com 1:NetworkManager-0.8.1-113.el6.x86_64 : Network connection manager and user applications Repo        : base Matched from: Filename    : /usr/bin/nmcli

 

　　2.安装NetworkManager服务

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1	[root@localhost ~]# yum -y install NetworkManager

　　启动NetworkManager服务

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1	[root@localhost ~]# /etc/init.d/NetworkManager start

　　运行nmcli发现有报错

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1 2	[root@localhost ~]# nmcli con Error: could not connect to D-Bus.

　　查看/var/log/messages日志

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[root@localhost ~]# more /var/log/messages ... Apr 20 14:53:05 localhost NetworkManager[2013]: <info> NetworkManager (version 0.8.1-113.el6) is starting... Apr 20 14:53:05 localhost NetworkManager[2013]: <info> Read config file /etc/NetworkManager/NetworkManager.conf Apr 20 14:53:05 localhost NetworkManager[2013]: <error> [1492671185.606620] [nm-dbus-manager.c:278] nm_dbus_manager_init_bus(): Could not get the system bus.  Make sure the message bus daemon is running!  Message: Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused ...

 

 　　3.需要先启动messagebus，再启动NetworkManager

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[root@localhost ~]# /etc/init.d/messagebus start Starting system message bus:                               [  OK  ] [root@localhost ~]# /etc/init.d/NetworkManager start Setting network parameters...                              [  OK  ] Starting NetworkManager daemon:                            [  OK  ]

 

　　4.此时再运行nmcli即可查看网卡UUID

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[root@localhost ~]# nmcli con NAME                      UUID                                   TYPE              SCOPE    TIMESTAMP-REAL                    System eth0               bbc0e340-6979-4e10-8b98-f1d395e7304e   802-3-ethernet    system   Thu 20 Apr 2017 02:54:51 PM CST   NAME                      UUID                                   TYPE              SCOPE    TIMESTAMP-REAL