[lug] Help request: Not able to activate networking on recovery mode. Ubuntu 11.10

Lee Woodworth blug-mail at duboulder.com
Tue Jan 24 22:47:56 MST 2012

On 01/24/2012 01:15 PM, Pablo Calderon-Rodriguez wrote:
> Hi all,
> I am hoping someone can help me get my install of Ubuntu 11.10 working
> again.
> When I start in recovery mode and select "Drop to root shell prompt with
> networking", networking is not up.
> 'start networking' returns
> networking stop/waiting
> Same result with variations such as /etc/init.d/networking start or service
> networking start
> 'start network-manager' returns
> Could not get the system bus. Make sure the message bus daemon is running!
> Message: Failed to connect to socket /var/run/dbus/system_bus_socket: No
> such file or directory

Do you have anything for starting dbus in /etc/init.d? Maybe something
like /etc/init.d/dbus. If so, try starting it manually.

> I am completely stuck and Google hasn't helped. Some people reported this
> problem when upgrading from 11.04, but that's not my case.
> For completeness, the reason I need to start in recovery mode is that I had
> pinned xserver-* packages to downgrade to a version of the displaylink
> drivers I was trying. When I rebooted the screen went black and even
> Ctr-Alt-F1 didn't work. I'm trying to update the packages again but can't
> because of the networking. I think this is unrelated to the networking
> problem but I could be wrong.

SSH from another system while the system is up with the black screen and look at
/var/log/Xorg.log and maybe /var/log/{xdm|kdm|gdm}.

> Thanks a lot to anyone who can shed some light!
> Pablo
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