freebsd-upgrade to 64 bit?

Valeri Galtsev galtsev at
Tue Oct 2 14:53:13 UTC 2018

On 10/2/18 5:59 AM, Andrea Venturoli wrote:
> On 10/2/18 12:29 PM, @lbutlr wrote:
>> Is it possible to go from 11.1 release to 11.2 release vi 
>> freebsd-upgrade and change to 64 bit in the process? Or do you just 
>> install 11.2-RELEASE-amd64 from scratch?
> While the officially reccomended procedure is to reinstall, I've been 
> able to convert some machines from 32b to 64b in the past.
> Whether this is convenient is arguable on a case by case basis.

Be it me, I will go with clean fresh install, then installation of 
packages, and restoring data. In my experience, this will take 2-3 times 
less time and lets avoid variety of potential trouble. But if everything 
is backed up, one can go upgrade route (relying on somebody's else post, 
never did that myself), and if something goes wrong, do fresh install.


> Also, I would do this as a standalone process, not mixing it with an 
> upgrade.
> Basically I installed the new system on a new HD, booted from there and 
> rsynced the base system to the old HD, while keeping configurations, 
> ports and data.
> I later rebuild all ports before removing COMPAT32 option from the 
> kernel. Expect several things not working until you complete this phase.
> Notice there are many pitfalls here: before starting you'll have to 
> delete all ports which install kernel modules, after the sync you had 
> better check your etc files against the distribution, etc...
> Also having separate system/data partitions helped.
> Don't blame it on me if it does not work for you :)
>   bye
>      av.
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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247

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