Linux虚拟机克隆后网卡UUID问题
虚拟机中的Linux系统克隆后,网卡配置eth0中的UUID可被克隆的系统是一样的,这样UUID就失去了唯一性。
有时我们不小心将/etc/sysconfig/network-scripts /ifcfg-eth0(可以通过此文件进行查看UUID)删除或者损坏,要重新编辑ifcfg-eth0文件时不知道网卡的UUID是什么(当然也可以 不写),那我们还有什么方法可以查看网卡的UUID呢?在这里我们使用的方法是使用nmcli命令查看,方法如下:
1、首先我们查看一下nmcli是哪个软件包提供的
[root@linuxidc ~]# yum provides "*/nmcli"
Loaded plugins:fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirrors.cug.edu.cn
* extras: mirrors.cug.edu.cn
* updates: CentOS.ustc.edu.cn
1:NetworkManager-0.8.1-75.el6.i686 : Network connection manager and
: user applications
Repo : base
Matched from:
Filename : /usr/bin/nmcli
2、从上面结果可以看出nmcli,接下来我们安装NetworkManager这个软件包
[root@linuxidc ~]# yum -y install NetworkManager
3、启动NetworkManager服务
[root@linuxidc ~]# service NetworkManager start
Setting network parameters... [ OK ]
Starting NetworkManager daemon: [ OK ]
4、查看网卡UUID
[root@linuxidc ~]# nmcli con | sed -n '1,2p'
NAME UUID TYPE SCOPE TIMESTAMP-REAL
System eth0 c1021d28-7238-4f26-8e92-4aea5d607cab 802-3-ethernet system Mon 08 Dec 2014 12:49:14 PM CST
5、检验是否与/etc/sysconfig/network-scripts/ifcfg-eth0里面的UUID值相同(注:检验只在ifcfg-eth0文件能正常查看UUID时才有效)
[root@linuxidc ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep UUID
UUID=c1021d28-7238-4f26-8e92-4aea5d607cab
下面是我的实际解决问题过程:
[root@Hadoop11 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
HWADDR=00:0c:29:ec:f6:99
IPADDR=192.168.153.11
NETMASK=255.255.255.0
GATEWAY=192.168.153.2
DNS1=8.8.8.8
DNS2=202.106.0.20
USERCTL=yes
PEERDNS=yes
IPV6INIT=no
[root@hadoop11 ~]# service network restart
正在关闭接口 eth0: [确定]
关闭环回接口: [确定]
弹出环回接口: [确定]
弹出界面 eth0: Determining if ip address 192.168.153.11 is already in use for device eth0...
[确定]
[root@hadoop11 ~]# user
-bash: user: command not found
[root@hadoop11 ~]# yum provides "*/nmcli"
已加载插件:fastestmirror, security
Determining fastest mirrors
* base: mirrors.tuna.tsinghua.edu.cn
* extras: mirrors.tuna.tsinghua.edu.cn
* updates: mirrors.tuna.tsinghua.edu.cn
base | 3.7 kB 00:00
base/primary_db | 4.7 MB 01:00
extras | 3.4 kB 00:00
extras/primary_db | 37 kB 00:00
updates | 3.4 kB 00:00
updates/primary_db | 1.4 MB 00:09
base/filelists_db | 6.4 MB 00:32
extras/filelists_db | 38 kB 00:00
updates/filelists_db | 1.1 MB 00:07
1:NetworkManager-0.8.1-107.el6.x86_64 : Network connection manager and user applications
Repo : base
匹配来自于:
Filename : /usr/bin/nmcli
[root@hadoop11 ~]# yum -y install NetworkManager
已加载插件:fastestmirror, security
设置安装进程
Loading mirror speeds from cached hostfile
* base: mirrors.tuna.tsinghua.edu.cn
* extras: mirrors.tuna.tsinghua.edu.cn
* updates: mirrors.tuna.tsinghua.edu.cn
解决依赖关系
--> 执行事务检查
---> Package NetworkManager.x86_64 1:0.8.1-107.el6 will be 安装
--> 处理依赖关系 ppp = 2.4.5,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 NetworkManager-glib = 1:0.8.1-107.el6,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 wpa_supplicant >= 1:0.6.8-4,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 mobile-broadband-provider-info >= 0.20090602,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 ModemManager >= 0.3-3.git20100317,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 rp-pppoe,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 dnsmasq,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 avahi-autoipd,它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 libnm-util.so.1()(64bit),它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 处理依赖关系 libnm-glib.so.2()(64bit),它被软件包 1:NetworkManager-0.8.1-107.el6.x86_64 需要
--> 执行事务检查
---> Package ModemManager.x86_64 0:0.4.0-5.git20100628.el6 will be 安装
---> Package NetworkManager-glib.x86_64 1:0.8.1-107.el6 will be 安装
---> Package avahi-autoipd.x86_64 0:0.6.25-15.el6 will be 安装
--> 处理依赖关系 libdaemon.so.0()(64bit),它被软件包 avahi-autoipd-0.6.25-15.el6.x86_64 需要
---> Package dnsmasq.x86_64 0:2.48-17.el6 will be 安装
---> Package mobile-broadband-provider-info.noarch 0:1.20100122-4.el6 will be 安装
---> Package ppp.x86_64 0:2.4.5-10.el6 will be 安装
---> Package rp-pppoe.x86_64 0:3.10-16.el6 will be 安装
---> Package wpa_supplicant.x86_64 1:0.7.3-8.el6 will be 安装
--> 执行事务检查
---> Package libdaemon.x86_64 0:0.14-1.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
=====================================================================================================================================
软件包 架构 版本 仓库 大小
=====================================================================================================================================
正在安装:
NetworkManager x86_64 1:0.8.1-107.el6 base 1.1 M
为依赖而安装:
ModemManager x86_64 0.4.0-5.git20100628.el6 base 177 k
NetworkManager-glib x86_64 1:0.8.1-107.el6 base 241 k
avahi-autoipd x86_64 0.6.25-15.el6 base 34 k
dnsmasq x86_64 2.48-17.el6 base 150 k
libdaemon x86_64 0.14-1.el6 base 28 k
mobile-broadband-provider-info noarch 1.20100122-4.el6 base 26 k
ppp x86_64 2.4.5-10.el6 base 328 k
rp-pppoe x86_64 3.10-16.el6 base 97 k
wpa_supplicant x86_64 1:0.7.3-8.el6 base 367 k
事务概要
=====================================================================================================================================
Install 10 Package(s)
总下载量:2.6 M
Installed size: 8.8 M
下载软件包:
(1/10): ModemManager-0.4.0-5.git20100628.el6.x86_64.rpm | 177 kB 00:00
(2/10): NetworkManager-0.8.1-107.el6.x86_64.rpm | 1.1 MB 00:01
(3/10): NetworkManager-glib-0.8.1-107.el6.x86_64.rpm | 241 kB 00:00
(4/10): avahi-autoipd-0.6.25-15.el6.x86_64.rpm | 34 kB 00:00
(5/10): dnsmasq-2.48-17.el6.x86_64.rpm | 150 kB 00:00
(6/10): libdaemon-0.14-1.el6.x86_64.rpm | 28 kB 00:00
(7/10): mobile-broadband-provider-info-1.20100122-4.el6.noarch.rpm | 26 kB 00:00
(8/10): ppp-2.4.5-10.el6.x86_64.rpm | 328 kB 00:02
(9/10): rp-pppoe-3.10-16.el6.x86_64.rpm | 97 kB 00:00
(10/10): wpa_supplicant-0.7.3-8.el6.x86_64.rpm | 367 kB 00:00
-------------------------------------------------------------------------------------------------------------------------------------
总计 327 kB/s | 2.6 MB 00:08
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Importing GPG key 0xC105B9DE:
Userid : CentOS-6 Key (CentOS 6 Official Signing Key) <[email protected]>
Package: centos-release-6-8.el6.centos.12.3.x86_64 (@anaconda-CentOS-201605220104.x86_64/6.8)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
正在安装 : ppp-2.4.5-10.el6.x86_64 1/10
warning: /etc/ppp/chap-secrets created as /etc/ppp/chap-secrets.rpmnew
warning: /etc/ppp/pap-secrets created as /etc/ppp/pap-secrets.rpmnew
正在安装 : rp-pppoe-3.10-16.el6.x86_64 2/10
正在安装 : 1:NetworkManager-glib-0.8.1-107.el6.x86_64 3/10
正在安装 : mobile-broadband-provider-info-1.20100122-4.el6.noarch 4/10
正在安装 : dnsmasq-2.48-17.el6.x86_64 5/10
正在安装 : libdaemon-0.14-1.el6.x86_64 6/10
正在安装 : avahi-autoipd-0.6.25-15.el6.x86_64 7/10
正在安装 : ModemManager-0.4.0-5.git20100628.el6.x86_64 8/10
正在安装 : 1:wpa_supplicant-0.7.3-8.el6.x86_64 9/10
正在安装 : 1:NetworkManager-0.8.1-107.el6.x86_64 10/10
Verifying : 1:wpa_supplicant-0.7.3-8.el6.x86_64 1/10
Verifying : ModemManager-0.4.0-5.git20100628.el6.x86_64 2/10
Verifying : rp-pppoe-3.10-16.el6.x86_64 3/10
Verifying : avahi-autoipd-0.6.25-15.el6.x86_64 4/10
Verifying : ppp-2.4.5-10.el6.x86_64 5/10
Verifying : libdaemon-0.14-1.el6.x86_64 6/10
Verifying : dnsmasq-2.48-17.el6.x86_64 7/10
Verifying : mobile-broadband-provider-info-1.20100122-4.el6.noarch 8/10
Verifying : 1:NetworkManager-glib-0.8.1-107.el6.x86_64 9/10
Verifying : 1:NetworkManager-0.8.1-107.el6.x86_64 10/10
已安装:
NetworkManager.x86_64 1:0.8.1-107.el6
作为依赖被安装:
ModemManager.x86_64 0:0.4.0-5.git20100628.el6 NetworkManager-glib.x86_64 1:0.8.1-107.el6
avahi-autoipd.x86_64 0:0.6.25-15.el6 dnsmasq.x86_64 0:2.48-17.el6
libdaemon.x86_64 0:0.14-1.el6 mobile-broadband-provider-info.noarch 0:1.20100122-4.el6
ppp.x86_64 0:2.4.5-10.el6 rp-pppoe.x86_64 0:3.10-16.el6
wpa_supplicant.x86_64 1:0.7.3-8.el6
完毕!
[root@hadoop11 ~]# service NetworkManager start
设置网络参数... [确定]
正在启动 NetworkManager 守护进程: [确定]
[root@hadoop11 ~]# nmcli con
名称 UUID 类型 范围 真实时间戳
System eth0 5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03 802-3-ethernet 系统 2016年08月03日 星期三 04时29分03秒
名称 UUID 类型 范围 真实时间戳
[root@hadoop11 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
[root@hadoop11 ~]# 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:激活的
活跃连接路径:/org/freedesktop/NetworkManager/ActiveConnection/1
[确定]
[root@hadoop11 ~]#