[mythtv-users] Upgrade from 0.20.2 -> 0.25.2

[Yann Lehmann]

Am 11.03.2013 16:12, schrieb Robert Dege:
> I'm building a new mythtv system.  The old system is a RedHat 9.0 box,
> running mythtv 0.20.2, and I'm upgrading to mythbuntu 12.04 running
> mythtv 0.25.2.
>

The database cannot be upgraded from 0.20 to 0.25 in a single pass.

AFAIK, you will have to upgrade step by step.

I went from 0.21 (Ubuntu 8.04) to 0.23 (Ubuntu 10.04) first, and then 
from 0.23 to 0.25 (still on Ubuntu 10.04). My goal is 0.26 on Ubuntu 12.04.

I did this with a parallel install on my backend, before moving it to 
new hardware (but keeping the same hostname). I would recommend this 
way, as you always have your "old" system running if something goes wrong.

And most of all, I would recommend using the backup and restore script 
available at www.mythtv.org. The work like a charm.

Yann