Hi,
I have installed Ubuntu 9.04 on my Macbook Pro via Bootcamp.
I allowed 10 GB of space on the partitions. It divided the 10GB of space between Ubuntu (linux) and the hard drive called "BootCamp"
I have been able to run Ubuntu but when I want to save anything it says that there is not enough space. This is because Hard drive called "BootCamp" took approx 8GB out of the 10GB leaving only 2GB to the Ubuntu (Named Linux) folder.

When I install things (e.g go into the Add/Remove and get an app), I want it to install onto the Hard Drive called "bootcamp" but at the moment it tries to install it into the Ubuntu (Linux) folder and then comes up with the error message like the one that I have attatched and other error messages saying insufficient space.

Thanks,
John

It is because you do have insufficient space. Ubuntu take 2gb, leaving you no space left. You can't just install apps on other hard drive (unless you know what you are doing, and apparently, you don't if you asked this question ).

Applications in Linux are not like in MacOS, they are not folder that you can carry everywhere. They install in a similar way to Windows (in system folders) but add file in many different places (like the icon directory, executable directory, documentation directory and so on). You can move these directories to different disk, but it is not recommanded. Just add more space for Ubuntu, it is the best thing you can do.