View Full Version : [ubuntu] Bug? No network w/ VirtualBox windows host, ubuntu guest after today's upgrade

September 4th, 2010, 03:30 AM
I have VirtualBox version 3.2.8.r64453 running on Windows XP SP3.

Installed as a guest is Ubuntu 10.04, which was installed a few days ago and I let the update manager fully update after the install.

I then installed guest additions, and haven't had any problems. Although the last couple of days Update Manager has done "partial updates" due to an external package changing some files. I have installed Eclipse, and sun-java5-jdk.

Everything worked great up until an update was installed today. After the update, Ubuntu has no network connectivity.

Here is a bit from Package Manager's history:

Commit Log for Wed Sep 1 16:32:16 2010

Installed the following packages:
gitk (1:
tcl (8.4.16-2)
tk (8.4.16-2)

Commit Log for Wed Sep 1 16:35:45 2010

Upgraded the following packages:
aptdaemon (0.11+bzr345-0ubuntu4) to 0.11+bzr345-0ubuntu4.1
bogofilter (1.2.1-0ubuntu1) to 1.2.1-0ubuntu1.1
bogofilter-bdb (1.2.1-0ubuntu1) to 1.2.1-0ubuntu1.1
bogofilter-common (1.2.1-0ubuntu1) to 1.2.1-0ubuntu1.1
libgudev-1.0-0 (1:151-12) to 1:151-12.1
libudev0 (151-12) to 151-12.1
libwww-perl (5.834-1) to 5.834-1ubuntu0.1
linux-headers-2.6.32-24 (2.6.32-24.41) to 2.6.32-24.42
linux-headers-2.6.32-24-generic (2.6.32-24.41) to 2.6.32-24.42
linux-image-2.6.32-24-generic (2.6.32-24.41) to 2.6.32-24.42
linux-libc-dev (2.6.32-24.41) to 2.6.32-24.42
mountall (2.15) to 2.15.1
python-aptdaemon (0.11+bzr345-0ubuntu4) to 0.11+bzr345-0ubuntu4.1
python-aptdaemon-gtk (0.11+bzr345-0ubuntu4) to 0.11+bzr345-0ubuntu4.1
udev (151-12) to 151-12.1
usb-creator-common (0.2.22) to
usb-creator-gtk (0.2.22) to
I reinstalled the guest additions after that thinking that would probably solve the networking problem, since it appears the kernel was upgraded. The difference in time was due to a trip to some great Mexican food for dinner :)

Commit Log for Fri Sep 3 22:00:16 2010

Downgraded the following packages:
After that I rebuilt the guest additions again.

'ifconfig' tells me eth0 interface isn't up. 'ifconfig eth0 up' does bring the interface up, but no DHCP action is afoot. To me, none of the other packages look like they would have an effect on my network interface, although of course I could be wrong.

Anyway, still no network... Any ideas from the community? A search of pages on Google for the last 24 hours has resulted in no leads.



edit: some new info - grepping dmesg for eth0:

[ 5.836449] e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
[ 616.322242] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 616.331419] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 616.347467] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 627.104400] eth0: no IPv6 routers present
[ 1345.591838] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 1345.599462] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[ 1345.600991] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1355.792182] eth0: no IPv6 routers present

Maybe ipv4 isn't setup for that interface? I don't know enough about where to look to make sure...

September 4th, 2010, 04:41 AM
few days ago it happened to me also I just restarted few times, then I figured out that Network was not enabled ( right click on network connections of upper bar).

September 4th, 2010, 04:51 AM
No network icon on the top bar either... Even after ifconfig eth0 up.