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Thread: No network after apt-get update + apt-get upgrade

  1. #1
    Join Date
    Jun 2012
    Beans
    13

    No network after apt-get update + apt-get upgrade

    Hi,

    I'm running a virtual machine (Hyper-V) Linux image and thus am only using virtual LAN (no wireless whatsoever).

    This was Ubuntu 10.04.3 LTS, after apt-get upgrade is .4.
    After I rebooted I now longer seem to have a network connection.

    I've checked settings and could not find anything wrong. Then I've removed the network card from the image and re-added it. Unfortunately that also did not help.

    When I ping localhost I get this:
    64 bytes from localhost (127.0.0.1): imc..... etc.

    When I ping the IP the image should have I get this:
    connect: Network is unreachable

    When I check /etc/network/interfaces everything seems fine/unchanged.

    auto lo
    iface lo inet loopback

    auto eth0
    iface eth0 inet static
    address 10.etc....

    When I do a route -n I get something I think I'm not supposed to get:

    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    <nothing here, empty!>


    Any idea what could be wrong / how I can resolve this?
    Thanks!

  2. #2
    Join Date
    Jun 2012
    Beans
    13

    Re: No network after apt-get update + apt-get upgrade

    Oh and ifconfig says this:

    lo Link encap: Local Loopback
    inet addr:127.0.0.1 Mask 255.0.0.0
    inet6 addr: ::1/128 Scope:Host
    UP LOOPBACK RUNNING MTU:16436 Metric:1
    etc...

  3. #3
    Join Date
    Jun 2012
    Beans
    13

    Re: No network after apt-get update + apt-get upgrade

    It seems somehow the NIC does not get recognised. It says this when I do a networking restart...

    So before the update/upgrade everything was fine. After this suddenly an unrecognised Hyper-V virtual NIC - what gives?

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