[mythtv-users] mythconverg_backup.pl choking on mythweather tables

Michael T. Dean mtdean at thirdcontact.com
Sat Oct 8 06:12:56 UTC 2011

On 10/07/2011 02:33 PM, Mark Boyum wrote:
> I would like to backup my database but find that the script dies as
> below.  I know next to nothing about mySQL and would appreciate any
> assistance.
> How do I remove any trace of mythweatther as we no longer use it?  I'd
> like to clean it out of the database entirely and assume that would
> allow the backup script to run.
> ./mythconverg_backup.pl --verbose
> <--- SNIP --->
> Executing command:
> '/usr/bin/mysqldump' --defaults-extra-file='/tmp/b1lBxr5u54'
> --host='localhost' --user='mythtv' --add-drop-table --add-locks
> --allow-keywords --complete-insert --extended-insert --lock-tables
> --no-create-db --quick --add-drop-table 'mythconverg' 2>&1
> 1>'/home/mark/mythtv_backup/mythconverg-1264-20111007131620.sql'
> mysqldump exited with status: 2
> mysqldump output:
> mysqldump: Got error: 1146: Table
> 'mythconverg.mythconverg.weatherscreens' doesn't exist when using LOCK


I'm guessing you won't see a "YES" in the "Support" column for 
"InnoDB".  That means that your distro disabled the InnoDB storage 
engine--because it saves 40MB of virtual RAM--to make a lean-mean 
machine for you and broke your MythTV database in the process.  If so:


(And be very careful with the copy/paste of the command to the shell.  
It must end with "EOF" as the entire last line--with no added 
end-of-line spaces, which copy/paste is likely to put in.  So, I 
recommend you copy everything except the "EOF" line, then paste it into 
a shell, then make sure you're on a different line from the "DELETE" 
line and type in "EOF<Enter>".)

Then, enable InnoDB on your mysql server, then restart mythfrontend and 
it will re-create the MythWeather tables (and backup will work because 
you won't have broken tables).


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