Switching to a 64 bit kernel

[Sam Varshavchik]

Eur Ing Chris Green writes:

> On Mon, Mar 19, 2007 at 08:10:06AM +0100, Mogens Kjaer wrote:
>> aragonx at dcsnow.com wrote:
>> >Hello all,
>> >
>> >I am currently running an i686 kernel and just upgraded my machine to a
>> >shiny new dual core 64 bit CPU.  My question is, how do I get a 64 bit
>> >kernel installed?
>> 
>> You'll need to reinstall with an x86_64 fedora.
>> 
> ... and while there are *some* advantages to running a 64-bit system
> there are also downsides still.
> 
> Advantages (that I can remember):-
>     You can use huge amounts of memory efficiently (i.e. if you have
>     more than 4Gb or memory)
> 
>     Some other things may run more efficiently
> 
> 
> Disadvantages
>     There may not be all the drivers you need available in 64-bit
>     (maybe less of an issue nowadays).

Both the 64bit and the i386 kernels have the exact same drivers.

If you can boot an i386 kernel, you can boot a 64bit kernel.

Now, there may be bugs in the 64bit versions of the drivers, but that's 
another story.

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