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I have confusion of installing Ubuntu 12.04!. Actually my system is 32-bit with 4GB RAM. In the official page of Ubuntu its given as 32-bit(for machine less than than 2GB RAM). Can anyone please help me,

Thank & Regards Suhas

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marked as duplicate by wojox, Seth, karel, Avinash Raj, Eric Carvalho Feb 25 '14 at 10:39

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.

up vote 6 down vote accepted

Whether you should run 32bit OS or 64bit OS mainly depends on your processor rather than on your RAM!

If your processor is capable of running 64bit OS (almost all latest processors are capable of running 64bit OS) Then you should install 64bit OS. If is not the case then you should install 32bit OS.

Talking about RAM:

If you install a 32bit OS then the Maximum RAM supported by your system will be 4GB.

If you install a 64bit OS then you can install more than 1TB of RAM!

have a look at this

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Thank you, I got answer for my question! – user3084481 Feb 24 '14 at 13:01

No. To start with, you'll lack the ability to boot or execute any of the 64-bit files. For all intents and purposes, it is essentially impossible to execute a 64-bit instruction on 32-bit hardware, and while 64-bit Ubuntu may have some 32-bit files, the main parts are 64-bit, so it won’t even boot.

Edit: Why does Ubuntu recommend 2/4GB RAM on 32 bit machines:

32-bit => 2^32 addressable locations = 4 GB

64-bit => 2^64 addressable location = 17179869184 GB

Hope this helps!

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Thank you,then I can install 32-bit ubuntu rite ? Actually i am confused with the sentence for 32-bit ( for the machine less than 2GB RAM) because my system is 4GB RAM. Does it make any problem? – user3084481 Feb 24 '14 at 12:52

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