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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?

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migrated from stackoverflow.com Nov 2 '09 at 12:40

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marked as duplicate by Arjan, alex, Diago Nov 2 '09 at 19:42

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Duplicate anyhow, like for example "Ubuntu 64bit vs 32bit" at superuser.com/questions/63799/ubuntu-64bit-vs-32bit –  Arjan Nov 2 '09 at 12:43

2 Answers 2

up vote 2 down vote accepted

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.

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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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