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Thread: NetworkManager - eth0 not managed

  1. #1
    Join Date
    Jul 2009
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    149
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    Xubuntu 11.04 Natty Narwhal

    NetworkManager - eth0 not managed

    Greetings,

    I'm running a Dell Mini 9 that I installed with a mini.iso command line installation. From there, I installed lubuntu-desktop over wired Ethernet, using DHCP and a shared Internet connection with my XP computer.

    However, now I cannot manage the eth0 interface with NetworkManager. Any ideas how to fix this?

    Here are my relevant lines of lspci:

    Code:
    03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
    I got the wireless working just fine through installing bcmwl-kernel-source, and I'm using that to talk to you right now.

    Thanks,
    Red

  2. #2
    Join Date
    Jul 2011
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    3,037
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: NetworkManager - eth0 not managed

    If you edit connections in Network Manager are you able to see the wired connection?

  3. #3
    Join Date
    Jul 2009
    Beans
    149
    Distro
    Xubuntu 11.04 Natty Narwhal

    Re: NetworkManager - eth0 not managed

    When I open Edit Connections, there is no wired profile listed. I added a basic DHCP-powered connection, but I cannot connect to it since it's reported as "device not managed".

  4. #4
    Join Date
    Oct 2006
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    74

    Re: NetworkManager - eth0 not managed

    Also check this: http://www.ubuntugeek.com/ubuntu-net...mand-line.html

    If your NIC is configured with the interfaces file - I believe (I might be wrong!) that the other Network Management applets will have issues attempting to manage the connection.

    Of course; you can configure it manually as well - the above link should give you a run down on it.
    Disclaimer: I'm still a bit of a Linux/Ubuntu noob myself!

  5. #5
    Join Date
    Jul 2009
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    149
    Distro
    Xubuntu 11.04 Natty Narwhal

    Re: NetworkManager - eth0 not managed

    here is my /etc/network/interfaces file:

    Code:
    # This file describes the network interfaces available on your system
    # and how to activate them. For more information, see interfaces(5).
    
    # The loopback network interface
    auto lo
    iface lo inet loopback
    
    # The primary network interface
    auto eth0
    iface eth0 inet dhcp

  6. #6
    Join Date
    Jul 2009
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    149
    Distro
    Xubuntu 11.04 Natty Narwhal

    Re: NetworkManager - eth0 not managed

    @Overcast32:

    I want NetworkManager to handle it because I want to share the wireless connection with other computers. I have a basement apartment, and the only way to connect is through Wifi to a router above me. I need to share the connection, and I know how to do that with NetworkManager.

  7. #7
    Join Date
    Oct 2006
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    74

    Re: NetworkManager - eth0 not managed

    Quote Originally Posted by Redmage913 View Post
    here is my /etc/network/interfaces file:

    Code:
    # This file describes the network interfaces available on your system
    # and how to activate them. For more information, see interfaces(5).
    
    # The loopback network interface
    auto lo
    iface lo inet loopback
    
    # The primary network interface
    auto eth0
    iface eth0 inet dhcp
    I'm still a bit of a newb, but just at a glance, that file looks ok for it to allow the Network Manager to deal with the connections. In my case, I wanted to mess with it and then noticed the connection disappeared in the Network Manager, don't seem to be the case for you.. it's all set to auto.

    Sadly, I'm on a Windows PC at work now, so I can't compare..
    Disclaimer: I'm still a bit of a Linux/Ubuntu noob myself!

  8. #8
    Join Date
    Oct 2006
    Beans
    74

    Re: NetworkManager - eth0 not managed

    Quote Originally Posted by Redmage913 View Post
    @Overcast32:

    I want NetworkManager to handle it because I want to share the wireless connection with other computers. I have a basement apartment, and the only way to connect is through Wifi to a router above me. I need to share the connection, and I know how to do that with NetworkManager.
    A friend of mine was fighting with the wireless not long ago on his laptop. I'm sending him an IM to ask what app he used to configure it.. I'll reply when I find out. Maybe it'll help.

    Sometimes I actually learn trying to help out too, lol.
    Disclaimer: I'm still a bit of a Linux/Ubuntu noob myself!

  9. #9
    Join Date
    Jul 2009
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    149
    Distro
    Xubuntu 11.04 Natty Narwhal

    Re: NetworkManager - eth0 not managed

    Hey, one of the best ways to learn is Watch, Perform, Teach.

  10. #10
    Join Date
    Oct 2006
    Beans
    74

    Re: NetworkManager - eth0 not managed

    He used something called 'ndiswrapper' and it allowed a Windows XP wireless driver to load..

    Dunno if that's any help.
    Disclaimer: I'm still a bit of a Linux/Ubuntu noob myself!

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