[mythtv-users] Myth cannot find tuner after reboot - RESOLVED

[Ian Hodgson]

Mike,
    Many thanks for your help; I followed the steps that you suggested 
and my MythTV box is back up and running v0.21.

                Ian.

Michael T. Dean wrote:
> On 04/29/2008 05:52 PM, Mike Perkins wrote:
>   
>> Michael T. Dean wrote:
>>   
>>     
>>> On 04/29/2008 03:38 PM, Ian Hodgson wrote:
>>>     
>>>       
>>>> I have been using MythTV 0.20.20070821 on Ubuntu v7.04 for the last 6 
>>>> months without any problems. Last weekend, I shut my machine down in 
>>>> preparation for a weekend decorating session.
>>>>
>>>> Decorating done, I switched the machine back on this evening only to 
>>>> find that Myth cannot find the TV card. I have tried the various tests 
>>>> that I used when setting up the machine and have verified that the card 
>>>> is working. I started the MythTV back end set-up program and noticed 
>>>> that there were no Capture Cards listed.
>>>>       
>>>>         
>>> http://www.gossamer-threads.com/lists/mythtv/users/264034#264034
>>>
>>>     
>>>       
>>>>  I reinstalled my card, but 
>>>> without success; MythTV no longer stores the card data that I add. A 
>>>> little Googleification points to a corrupted database and a reinstall as 
>>>> the solution.
>>>>
>>>> This may be a good time to update to 0.21, but I have some questions 
>>>> about maintaining the data in my current configuration. Whilst the 
>>>> recording schedules are not so important, I would like to keep the 
>>>> recorded programs after the update so finally to the question; what do I 
>>>> need to do to fix my database and install the updated release whilst 
>>>> still being able to access my existing MythTV recorded files.
>>>>
>>>> I should add that I am not experienced with mySQL so I would appreciate 
>>>> a pretty detailed rely.
>>>>       
>>>>         
>>> backup with: http://mythtv.org/docs/mythtv-HOWTO-23.html#ss23.5
>>> upgrade MythTV, run mc.sql ( 
>>> http://mythtv.org/docs/mythtv-HOWTO-6.html#ss6.2 ), then run 
>>> mythtv-setup, then restore your programs, etc. with 
>>> http://mythtv.org/docs/mythtv-HOWTO-23.html#ss23.7
>>>       
>> That's fine, Mike, but he did point out that he likely had a corrupted database. 
>> At what point in your backup/upgrade/restore cycle should he fix his database, 
>> as he might not be able to back it up in the first place?
>>     
>
> Assuming the corruption isn't in one of the 23.7 tables, he'll "fix" his 
> corrupted database when he does the "DROP DATABASE mythconverg;" (which 
> would occur sometime before running mc.sql, or when he starts with a new 
> OS install or whatever).
>
> That being said, I'm not convinced it's database corruption.  If so, he 
> can fix database file corruption with optimize_mythdb.pl.  Data 
> corruption is much harder to fix and often, 23.7 is the quickest, 
> easiest, and most effective way to do so.
>
> Mike
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>   
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