Upgrading Ubuntu i686 (32bit) to x86_64 (64bit)

Introduction
I recently received a new hard drive (a Intel X25-V) and needed to install Ubuntu on it. The only difference is that I this time decided to run a 64bit version instead. Up until now I have been reluctant to upgrade as flash and other required more work to get working but at the time write this there is really not that much of a difference anymore. In addition I can address all my 4GB memory without PAE.

There are always some quirks involved when setting up a new OS and beneath I have describe the problems I had and their solutions.

gkrellmtop
I absolutely love gkrellm for monitoring my system, see fullcirclemagazine.org. One of the plugins I really enjoy is gkrellmtop which lists the 3 most CPU intensive processes. Unfortunately I was not available from the repositories so I had to compile it my self.

I downloaded the project from http://sourceforge.net/projects/gkrelltop/. I got the relevant dependencies from the repositories.

root@bohr:~# aptitude install libglib2.0-dev buil-essential libgtk2.0-dev

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