Debian

After patching I noticed that there were several packages "Kept back", in my case gnumeric. This could be because the base system needs to be upgraded:

# apt-get dist-upgrade

or it's just missing dependancies

# apt-get install gnumeric

and to ignore the hold:

# apt-get --ignore-hold install gnumeric

I was also told I could specify a version different than that in my version

$ /cat /etc/debian_version

to determine my version. Say I was using stable and wanted to try unstable:

# apt-get install gnumeric/unstable gnumeric-common/unstable

Now I want to see what got installed, and where:

# dpkg -L gnumeric

MythTV

Determine your version of debian:

$ cat /etc/debian_version
testing/unstable 

If I now reference http://www.debian.org/releases/ it says I'm using etch (testing) and sid (unstable) as of writing this. Now I will scroll down http://www.debian-multimedia.org/ and look for the /etc/apt/sources.list entry for my version of debian. I add the follow to /etc/apt/sources.list as I choose to use etch:

deb http://www.debian-multimedia.org etch main 

Now we need to add the package maintainers key to our debian keyring:

# apt-get install debian-keyring 
# gpg --keyserver wwwkeys.eu.pgp.net --recv-keys 1F41B907 | apt-key add -