Advice for "crossgrading" from 32 bit F11 to x64 ?

Linuxguy123 linuxguy123 at
Wed Sep 30 03:58:47 UTC 2009

On Tue, 2009-09-29 at 23:32 -0400, Sam Varshavchik wrote:
> Linuxguy123 writes:
> > I do a lot of photo processing... things like generating 200 jpgs from
> > raw files at one go.   My laptop has 4GB of RAM but is currently only
> > using 3GB because I am running a 32 bit kernel. 
> Why led you to this conclusion? 32 bit Linux is perfectly capable of 
> addressing 4 GB+ of RAM. You need to install a PAE kernel, which should 
> already be the case, by default.
> If you are not already booting a PAE kernel, just install it.
> > Sooner or later I want to upgrade to a 64 bit kernel and 8 GB of RAM.
> > Other than this article, I can't find any information on the subject.
> > 
> >
> > 
> > I am looking to do the upgrade WITHOUT reinstalling Fedora.  I've done
> Someone who has sufficient technical experience and know-how might be able 
> to pull this off. But, to be perfectly straight, if you have to ask how to 
> do this, you do not have the requisite know how.


> But, if all you want is more RAM, all you really need is the PAE kernel, 
> which I believe can handle up to 16 GB. A single 32 bit process is still 
> limited to accessing 3 GB max, but overall the system will be able to use up 
> to 16 gigs. If that works out for you, this is your path of least 
> resistance.

Thanks for the reply.  I installed the PAE kernel. 

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