I still get asked about the lost+found directory enough, and so I wanted to provide a current update.
The lost+found directory is a filesystem directory created at the root level of a mapped drive. Thus this is common to see if you create your mysql datadir at the root level of a mapped drive.
In the past, you could ignore it, if it wasn’t too problematic for you, or you could move your datadir down a level, and then it wouldn’t be created in the datadir anymore.
However, there is now the –ignore-db-dir option. It is actually not too new (it’s been in MariaDB since 5.3.9 and 5.5.28, and in MySQL as of 5.6.3), but I don’t think many are too familiar with it.
But when you do run into this problem, some/many would prefer to add a single line to the config file rather than move the datadir.
To do this, just add the following option to your my.cnf file, under the [mysqld] section (it cannot be set …[Read more]