On transferring a Magento website Database running on MySQL 5.7.34 to MariaDB 10.2.39, I get the following error: [naveenos@server2 etc]# mysql m1_db < db.sql ERROR 1005 (HY000) at line 4080: Can't create table `catalog_product_relation`...

We all are developers and generally we do mistake in files and folders permission. It might be intentionally to fix any issue or by mistake. But how to fix the permissions back when it happened. Just go to your Magento setup root folder and run these...