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发表于 2012-1-5 19:18:05
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magic_os 发表于 2012-1-4 20:44
linux是安装在虚拟机里面?
物理环境是怎样的?
THANK YOU!!!!
对,linux安装在虚拟机里边
我的是物理机用无线连接到无线路由的
虚拟机设成桥接,第一次也实现了上网,
隔天再打开,其他的都没设置,就不行了
后面改成用有线这样解决了:
问题:Ubuntu升级后,在NetworkManager里发现只能用无线网连接,有线eth0的位置显示“Device not managed”
应该是NetworlManager没有管理有线连接。
google到解决方法,具体原理不是很清楚,只是按提示做了,可以解决问题,存档以备以后查看
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Ubuntu 9.04 “Wired Network – device not managed”
by Craig Mayhew on Jun.13, 2009, under Guides/Fixes, Linux/Ubuntu
After upgrading to Ubuntu 9.04 I’ve found the network manager GUI to be far superior to the previous version I was using in Ubuntu 8.04 LTS. Unfortunately when I was using Ubuntu 8.04 I made some custom alterations to my network setup in the “/etc/network/interfaces” file. The Network Manager in 9.04 wasn’t keen on this and so refused to manage it, instead it displayed the message “Wired Network – device not managed”.
As a work around I commented out all of my changes by placing a # at the beginning of each line in my interfaces file:
Open the interfaces file in an editor:
sudo vim /etc/network/interfaces
This is an example of how my file looked before I modified it. Yours will be different:
auto lo
iface lo inet loopback
iface eth2 inet static
address 192.168.0.44
netmask 255.255.255.0
gateway 192.168.0.1
auto eth2
And here’s the same file again, but I’ve added #’s at the beginning of each line so that they are ignored:
#auto lo #iface lo inet loopback #iface eth2 inet static #address 192.168.0.44 #netmask 255.255.255.0 #gateway 192.168.0.1 #auto eth2
In order for the changes to take effect,
we need to restart the network manager and the applet by running each of these in the command line:
sudo /etc/init.d/networking restar
And now restart the network manager applet:
pkill nm-applet
nm-applet
You should now be able to manage the network connection from within the network manager applet.
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注:
1.要让NM管理有线连接,还需要编辑文件 /etc/NetworkManager/nm-system-settings.conf 把
[ifupdown]
managed=false
选项设置为true
2.kill nm-applet从新启动后,并没有起作用。后来是kill了NetworkManager进程后,修改生效。
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