[mythtv-users] partial restore of database from backup

James Abernathy jfabernathy at gmail.com
Wed Oct 23 09:30:53 UTC 2019

On 10/23/19 2:47 AM, Mark Perkins wrote:
> ------------------------------------------------------------------------
> *From:* James Abernathy <jfabernathy at gmail.com>
> *Sent:* Tuesday, 22 October 2019 1:29 am
> *To:* Discussion about MythTV
> *Subject:* [mythtv-users] partial restore of database from backup
>     Like many I do daily backup of my mythtv database. However, I've only
>     used that backup when building a new setup of hardware that will
>     hopefully be doing the same function as the old one, once the database
>     is restored and the recordings copied to the right directories.
>     What I'm doing now is different and not sure if the saved database can
>     help.  I'm build an additional mythtv backend that will be used to
>     record some of the same programs but it started with a clean database.
>     Both backends are set to record for example "NCIS". My main
>     backend has
>     been recording those since the beginning of the series so when a rerun
>     comes on it will not record it again because it once recorded it long
>     ago, even though it's been watch and deleted.
>     The new backend will recorded it because it has no history.  Some
>     of the
>     reruns are not tagged as such and using that record flag doesn't solve
>     the problem.
>     So my question is, can I export the record history of a program or all
>     programs from one backend to another so the new backend will not waste
>     time recording something that's already be seen?
> Any particular reason for choosing two master backends instead of 
> making the second a slave of the first?
I didn't go into any detail but what I'm doing is playing and learning 
with the new backend while I'm home from traveling in my RV where the 
new backend will be when we are traveling. We're usually gone for 4 
months and home the rest of the time. When home it's a good time for 
computer maintenance and play.  So other than maintenance, the master 
backend will remain undisturbed. The new backend removed from the RV is 
a Raspberry Pi 4B 4GB ram with a 1TB SATA SSD connected to USB3 which is 
my rootfs and my recording drive. There I use HDHR Quatro for tuners. 
I'm sort of parallel testing worse case scenarios to see how good the 
RPi 4 is.

If you're interested I documented what I did with the help of others on 
the forum: https://forum.mythtv.org/viewtopic.php?f=46&t=3331

Jim A

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