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Ubuntu 64bit vs 32bit

I've been using 32 bit Ubuntu for the last couple of years on my development machine.

I generally write web apps in php.

I would like to use a 64 bit OS for the obvious reasons but wonder if there are any Got-Ya's that I should know about.

For those that are using a 64 bit version of Ubuntu, is it as straight forward as using the 32 bit version, or are there issues that one needs to be aware of?


I installed the 64bit edition of Ubuntu 9.10 Karmic Koala and haven't had any problems. Even flash worked right away.

Look at this for a 32 vs 64 bit benchmark of Ubuntu 9.04.


I first tried 64bit ubuntu with the Hardy Heron release, the only issues I found were to do with the flash plugin

Found this link documenting any issues, but I think most if not all are resolved


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