Seriously there was a session today during the Ubuntu Open Week about running Ubuntu+1. Which is to say running the next release of Ubuntu. To me this is like running Debian unstable; sometimes it's stable sometimes it's not. Actually this is the first time I've tried it with Ubuntu.
I did a mix of command line and gui. First the command line part:
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
That makes a copy of the current sources list so one can restore it. However if an upgrade goes south it's not all that helpful.
Next is a combination of command line and gui. I have a terminal open so I just type what I want to do. Which is...
sudo gvim /etc/apt/sources.list
That's what *I* want to do. The reader may be more comfortable with another editor; use what you like. I use the gui buttons to find/replace karmic with lucid. Save and exit. Note: a ":x" will save and exit in vim and gvim; one less keystroke than ":wq".
After that save and exit be sure to disable any third party repos. I forgot to do that and it has not caused me any problems yet.
Now make damn sure you want to do this....
sudo apt-get update
sudo apt-get upgrade
Let that run; I had 256 packages that needed to be upgraded earlier today; I said yes.
Now I'm posting this from a running Lucid Lynx installation. Well yeah it is in Virtual Box but still...
Kinda cool to run it this early. I _do expect it to break as that is the point of a development release.