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VirtualBox 4.3.6 Ubuntu Networking Failure

I recently migrated my development VirtualBox .VDI disk images from an old storage pool. After setting up a new container for my Ubuntu 12.04.3 LTS images, networking would fail to start up.

I am currently using a virtual Intel PRO/1000 MT Desktop (82450EM) adapter, which is bridged to my Realtek PCIe GBE Family Controller.

To fix networking, perform the following:

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$ sudo -i
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$ cd /etc/udev/rules.d/
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$ rm 70-persistent-net.rules
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$ shutdown -rf now

Once restarted, confirm existance of the primary interface (likely eth0):

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$ ip a | grep eth0

You should see something like the following:

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2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    inet 192.168.1.144/24 brd 192.168.1.255 scope global eth0

DHCP has assigned 192.168.1.144/24. Perfect!

Happy virtualizing.

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