Importing old mysql data folder

Question

After a reinstall, all of the old data still shows inside the MySQL/data folder, but is not actually loaded into the database.

Is there any way to have MySQL scan it's data folder and / or reimport the old folders it has from its previous install?

[Some data was changed after the last backup / export - partially my fault - so I would rather it recognize the folders rather than reimporting the SQL files.]

Answer 1

If the data is in the correct folder, it will be visible in MySQL, or you will get errors when the server starts. Check /var/log/messages and your MySQL error log (as defined in your config).

If you don't get any errors and can't see the data, it's likely that the data path in my.cnf is pointing to a different folder.