My ongoing experiences with Ubuntu, and later Mythbuntu, as a media center with MythTV. I'm also using the system for a virtual machine server, a mediawiki server and a general all around home infrastructure base.

Thursday, July 30, 2009

Networking didn't work after kernel upgrade: br0?

I did an 'apt-get dist-upgrade' and there was a kernel upgrade, so I rebooted. When the system came back there was no functional networking. Everything looked fine, I couldn't reach anything besides loopback.

On a hunch, I commented out br0 interface from /etc/network/interfaces and bounced networking (/etc/init.d/network restart) and all OK.

Then for grins I added br0 interface back and bounced networking again and, huh, all now seemed OK.

So I tried rebooted and all was still OK.

Chalking it up to a mystery for now unless problem returns.

Saturday, July 25, 2009

Another dyndns false alarm - put weekly force into place

I got another ddclient false alarm, where my daily cron job seems to lag just a day behind dyndns sending me an email warning.

This time I decided to add a cron job that does a forced update once a week to get rid of this race condition. Start my copying over the daily cron job:

# cp /etc/cron.daily/ddclient /etc/cron.weekly/

And then editing it to include '-force':
# vi /etc/cron.weekly/ddclient

End result looks like this:
/usr/sbin/ddclient -syslog -force

Sunday, July 5, 2009

Upgraded to Virtualbox 3.0

I notiec that Virtualbox 3.0 was released, so I upgraded my previous install using the directions from This time I went the route of editing /etc/apt/sources.list by adding the following line:

deb jaunty non-free

Then adding the Sun VBox key:

wget -q -O- | sudo apt-key add -

Then did the install:

apt-get install virtualbox-3.0

Then I also downloaded and installed the new 3.0 version of the SDK from the Virtualbox download page (which seems to have been updated to work with Python 2.6 btw).