[Dreamplug-Ubuntu] apt-get won't work

ARM-Processors only are supported by Ubuntu jaunty (9.04 is standard with Dreamplug) and Ubuntu no longer supports Jaunty, you have to alter the Sources for apt-get, otherwise you won't be able to update or install new things.

To do so you have to edit /etc/apt/sources.list

 root@ubuntu:~# vi /etc/apt/sources.list  

Replace the ubuntu.com/ubuntu with http://old-release.ubuntu.com/ubuntu/
Your file should now look like this:

 deb http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted universe multi  
 verse  
 deb http://old-releases.ubuntu.com/ubuntu/ jaunty-updates main restricted univer  
 se multiverse  
 deb http://old-releases.ubuntu.com/ubuntu/ jaunty-security main restricted unive  
 rse multiverse  

After you saved the file you should be able to successfully run apt-get update. Afterwards installation should work as expected.