How to cross-upgrade Fedora x86(32-bit) => x86_64(64-bit) using 'preupgrade'
Gerry Reno
greno at verizon.net
Wed Apr 22 14:36:03 UTC 2009
Mat Booth wrote:
> On Wed, Apr 22, 2009 at 5:41 AM, Gerry Reno <greno at verizon.net> wrote:
>
>> For the past couple months I've been working on finding a way to
>> successfully upgrade Fedora x86(32-bit) to x86_64(64-bit). I had almost
>> given up because nothing seemed to work despite dozens of different
>> approaches. Then a couple days ago I started a new set of experiments and
>> now I have successfully cross-upgraded three different systems using this
>> technique. On the three machines that I used, all the configs that I set up
>> were still in place after the upgrade. The machines behaved normally and I
>> have not found any sign of problems yet. But, it would be difficult to see
>> how this technique could ever be fully automated because it requires a
>> certain amount of manual inspection in a number of places. And it's
>> probably something that could not be officially supported. But at least it
>> appears there may now be a technique to perform a successful 32-bit =>
>> 64-bit upgrade. And for those who have heavily configured machines this may
>> be worth a try. Anyway, here's the technique:
>>
>>
>
> You sir, are a hero. I wanted to do exactly this once F11 is released
> and was disappointed to learn it wasn't possible in an earlier thread
> on this list (that I can't immediately find the link to).
>
> I think I will give this a try (won't be until next month, though).
> Worst case scenario is I just blat it away and reinstall from scratch,
> which is what I was planning anyway.
>
>
Exactly. That's how we looked at. We had nothing to lose by trying to
do this because the alternative was a complete wipe of the system anyhow.
Regards,
Gerry
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