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Thread: new install misses network, no interface

  1. #1
    Join Date
    Feb 2010
    Location
    Perth Australia
    Beans
    6
    Distro
    Ubuntu 9.10 Karmic Koala

    new install misses network, no interface

    I have a new install and I am quite surprised it just misses networking. That is, NO networking.

    ifconfig comes up with inly lo. Nothing else, most primal.

    It should use dhcp to connect, bit it fails to create the eth0 interface.
    Such a fundamental flaw is one I can't work on. Forget looking in network manager in the desktop, that's still being installed, but it's no help.
    I've checked the basic files in etc against karmic.


    idella@squeeze:~$ cat /mnt/lucid/etc/network/interfaces
    # Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
    # /usr/share/doc/ifupdown/examples for more information.

    # The loopback network interface
    auto lo
    iface lo inet loopback

    # The primary network interface
    allow-hotplug eth0
    iface eth0 inet dhcp
    iface wlan0 inet dhcp

    This one had me puzzled. I was attempting to bring it up as a vm, and it just rejected the line

    allow-hotplug eth0.

    It accepted hotplug eth0, then didn't do it.


    idella@squeeze:~$ cat /mnt/lucid/etc/networks
    # symbolic names for networks, see networks(5) for more information
    loopback 127.0.0.0
    link-local 169.254.0.0

    idella@squeeze:~$ cat /mnt/lucid/etc/resolv.conf
    nameserver 61.9.242.33
    nameserver 61.9.226.33

    Any help appreciated.

  2. #2
    Join Date
    Sep 2006
    Location
    Denver, Colorado
    Beans
    5,638
    Distro
    Ubuntu 9.10 Karmic Koala

    Re: new install misses network, no interface

    Run...

    sudo gedit /etc/network/interfaces

    In the resulting text editor, put a comment (#) in front of each of these lines...

    allow-hotplug eth0
    iface eth0 inet dhcp
    iface wlan0 inet dhcp

    ...so that they look like this...

    #allow-hotplug eth0
    #iface eth0 inet dhcp
    #iface wlan0 inet dhcp

    Leave these lines...

    auto lo
    iface lo inet loopback

    ...alone.



    Save it. Reboot.

    Did that fix it?
    To err is human, to forgive is very ... dog-like.

    Thomas Aaron
    FetchMasters, LLC

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