I have openSUSE 12.1 x64 host and I'm running Ubuntu 10.04 x86 as guest.
My problem is that Ubuntu sees no network at all. I have both tried NAT and bridge setup but I have no interface on the VM. ifconfig returns only lo
VirtualBox version is 4.1.18_OSE running as a member of vboxusr group and I installed the correct addins in the guest.
How can I fix this?
It appears that your guest only has a loopback interface for whatever reason.
Try entering the virtual machine settings and see if the VM has a network card installed.
If that is not the case. And you have recently changed the VM's mac address then I would look at this thread as the user seems to have the exact same problem as you.
https://forums.virtualbox.org/viewtopic.php?f=7&t=43090
specifically this "each time you give a new MAC address (in VBox guest settings) Debian and Ubuntu guests udev assigns a new eth number edit /etc/udev/rules.d/70-persistent-net.rules or delete the file: it will be recreated @ next boot"
Add a Bridged Connection to your N/W interface by using Network Options. If you have changed your MAC, then just deleting /etc/udev/rules.d/70-persistent-net.rules is not enough. Ubuntu keeps previous MAC entries as well in this file. While OS load, it cannot find previous MACs (since you have changed it to new) and hence fails at that point, failing to add new MACs and new interfaces. You need to edit the file. Follow the steps:
/etc/udev/rules.d/# SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:XX:XX:XX", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1")NAME="eth0", "eth1" and so on.Originally posted by me in the virtualbox.org forum.
