[mythtv-users] Database backup (was Re: connect an 0.22 front end to an 0.21 backend)

Mike McMullin mwmcmlln at mnsi.net
Mon Dec 21 08:37:55 UTC 2009

On Sun, 2009-12-20 at 23:01 -0500, Michael T. Dean wrote:
> On 12/20/2009 10:50 PM, Mike McMullin wrote:
> > On Sun, 2009-12-20 at 22:43 -0500, Michael T. Dean wrote:
> >   
> >> On 12/20/2009 10:35 PM, Mike McMullin wrote:
> >>     
> >>> I updated a system to Ubuntu 9.10 with Mythtv-0.22, but my master
> >>> backend is running oS11.1 with Mythtv-0.21, is there a way to get the
> >>> front end to connect to the master backend and not have it complain
> >>> about the difference in database schema's?
> >>>       
> >> No.  Not without breaking your database data, and even if you did it, 
> >> the frontend would be completely non-functional.
> >>     
> >   Thanks Mike, I'll see if I can get the earlier version put on the
> > laptop, frankly I'd love to just dump oS, but until I can get the
> > database backup script to run, I'm kinda stuck with it.
> The database backup script is something I /can/ help you with (and feel 
> free to step back into IRC if that was you in there earlier--I'm sphery 
> in there).
> What, specifically is the problem with it?

  Not it, it's openSuSE that is the culprit, a number of the perl
requirements fail even though they are installed.

> If it's a lack of Perl support on your system (I don't know what oS11.1 
> is), you can always run the backup script from any other system with 
> Perl and the MySQL client tools installed (i.e. an Ubuntu LiveCD or your 
> frontend system).  You don't need to run it on the same host running the 
> database server.
> See, also, http://www.mythtv.org/wiki/Database_Backup_and_Restore .  The 
> first section ( 
> http://www.mythtv.org/wiki/Database_Backup_and_Restore#Script-based_Database_Backup_and_Restore 
> ) includes directions for downloading an up-to-date copy of the backup 
> script.
> If there is a problem, I'd love to fix it, so I'd appreciate your feedback.

  I'll try the 9.04 live cd and see how this works.  Thanks for the
heads up.

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