Switching to a 64 bit kernel
Sam Varshavchik
mrsam at courier-mta.com
Mon Mar 19 11:04:48 UTC 2007
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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