Hi, I'm using the Ubuntu LTS 12.04 on my quad-core UDOO. Right now I'm running the lamp software (I followed the guide on the web site one years ago) and I'm running PHP 5.3. I want to update to PHP 5, but I'm not able to do it. Is there any way to do ? Also I have to use each time aptitude instead of apt-get for each installation. If I try sudo apt-get install -y -php5 I got: