[mythtv-users] complete uninstall and reinstall on Ubuntu 20.04

[Stephen Worthington]

On Mon, 1 Nov 2021 15:33:19 -0400, you wrote:

>I know that when I install MythTV on an Ubuntu 20.04 machine it does
>everything for me in regards to database, Mythweb, passwords and config
>files.  However using apt remove --purge doesn't remove everything.
>
>What else do I need to delete to make the mythtv-setup start all over
>again? I've tried removing the /etc/mythtv directory and the
>/home/$USER/.mythtv directory.  I must be missing something.
>
>Maybe the mariadb database is still there???
>
>Jim A

You also need to remove /var/lib/mythtv, as there are changed files
there (database backups at least).

I would think that there would be user data in the MySQL/MariaDB
system tables also, even if the mythconverg database is purged.  To
delete that you would need to know what users were created for use
with mythconverg.  So do this:

sudo mysql
SELECT User, Db, Host from mysql.db where Db='mythconverg';