[mythtv-users] New server problems

[Michael T. Dean]

On 10/24/2014 11:52 AM, Michael T. Dean wrote:
> On 10/24/2014 11:34 AM, Mike Carron wrote:
>>
>> On 10/24/2014 04:17 AM, Michael T. Dean wrote:
>>> On 10/23/2014 12:46 AM, Mike Carron wrote:
>>>> Further reading of the mythconverg_restore.pl material in --help 
>>>> --help convinced me that a partial restore was what I really wanted.
>>>
>>> No, that's not what you want.  There is never a reason to do a 
>>> partial restore of the database unless you have a corrupt schema 
>>> and/or corrupt data in certain tables (the ones that aren't included 
>>> in the partial restore).
>> ***
>> It may not be what I want but the description of the option 
>> --partial_restore clearly states that it is required when setting up 
>> MythTV on new hardware. Is that not so?
>
> Well, it shouldn't.  Long ago, that was the approach that was used.  
> We've since found out that it's completely useless.

Actually, useless isn't the proper word.  It's beyond useless--it's 
downright dangerous.  It makes it extremely likely for misconfiguration 
to occur (since most users don't necessarily know all the configuration 
options they've set over the years of using MythTV, and those that do 
may not recognize where/how to set them with the changes to the 
configuration system that have occurred since they originally specified 
them).  And at the end--though people once thought there was 
benefit--there's absolutely no benefit to the process other than saving 
approximately 4-8kB of HDD space (not RAM, just space on the hard drive) 
in the MySQL data files per host that was once used and is no longer 
used.  And, if all that's changing is the name of the hosts (and not the 
number of hosts) in use, then the mythconverg_restore.pl 
--change_hostname option can be used against a full restore to make it 
so no space is saved.

A much better process for new hardware setup is to do a full restore, 
then--if necessary--mythconverg_restore.pl --change_hostname (for all 
hosts whose name you're changing), then go into mythtv-setup and "Delete 
all capture cards" (not "Delete all capture cards on <hostname>") and 
"Delete all video sources", then reconfigure just the TV capture portions.

I'll try to make some time to push a fix that removes the "new hardware" 
stuff from the script documentation.

Mike