[mythtv-users] Moving storage and database to new machine?

[Magnus Larsson]

Hi!


Thanks for your advice! Yes, I meant complete backup of database, 
however, I was not aware of the scripts described on the wiki page 
(http://www.mythtv.org/wiki/Database_Backup_and_Restore).

And the idea to physically move the drives is appreciated - had not 
thought of that.

One more question: I understand how I manage the hostname, and it sounds 
like a good idea to use the old hostnamne (I know how to manage that) - 
but:

What about the path to the recordings themselves? I mean, how are they 
identified in the database - does that depend on the actual path in the 
file-system? I would like to use another file system logic in the new 
one, as the old one is not logical (due to incremental growth over a few 
years). Will that work, or do I need to consider this specifically? (I 
am quite ignorant about how the mythtv database actually works....).

I hope this makes sense. Grateful for any comments on it. I am getting 
this process started tomorrow.


Best,


Magnus



2012-10-01 01:14, Nick Rout skrev:
> On Mon, Oct 1, 2012 at 11:15 AM, Michael T. Dean
> <mtdean at thirdcontact.com> wrote:
>> On 09/30/2012 08:08 AM, Magnus Larsson wrote:
>>> Hi!
>>>
>>> I am setting up a brand new backend for my Mythtv (all in ubuntu 12.04),
>>> and need to move the database and existing recordings to this new machine. I
>>> read in the Wiki on how to manage storage devices in the storage groups, but
>>> am not clear on how to best move betwen different physical machines.
>>>
>>> My plan is to export - import the database and simply do a rsync of the
>>> recordings to the new maching. The paths in the new machine will be slightly
>>> different (bigger, raid5, as opposed to smaller and no-raid previously).
>>>
>>> Any advice before I start and make troubles for myself?
>>
>> If by "export - import" you mean, do a complete backup of the database (
>> http://www.mythtv.org/wiki/Database_Backup_and_Restore ) and then do a full
>> restore of that backup on the new machine, replacing whatever database may
>> be there (
>> http://www.mythtv.org/wiki/Database_Backup_and_Restore#Replacing_an_existing_database
>> ), that's the proper procedure for handling the database.  As Nick
>> mentioned, make sure you consider host names--the easiest approach is to use
>> the exact same host name for the new system as you used on the old, since
>> all your configuration is stored in a profile based on the system's host
>> name.
>>
>> And, IMHO, rsync is the best tool for moving the recordings themselves
>> (using --progress, especially, makes it user-friendly--not to mention the
>> fact that you can stop/restart it as necessary).
> My standard rsync options are -avPp - I've been doing it that way so
> long I cannot recall what they each do, but I get progress reported
> back to me!
>
> I assume you are doing rsync over your lan. It may be quicker to
> remove the storage drives from the old machine and plug them in to the
> new machine. The transfer will be quicker, and you can still use rsync
> so that if you have to stop for some reason, you can carry on later.
>
>
>
>> Mike
>>
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