So today I happen to need to restore a MySQL database from backups so I could recover some tables. While I left he production database running via port 3306, I set up the backup via port 3307.

However, when I attempted to start another version via the 3307 port in a mysql_restore directory but  I ran into some errors....


/usr/bin/mysqld_safe --defaults-file=/etc/my_3307.cnf

[Warning] Can't create test file /var/lib/mysql_restore/localhost.lower-test
[Warning] Can't create test file /var/lib/mysql_restore/localhost.lower-test
Can't find file: './mysql/plugin.frm' (errno: 13)

InnoDB: Completed initialization of buffer pool
InnoDB: Operating system error number 13 in a file operation.
InnoDB: The error means mysqld does not have the access rights to
InnoDB: the directory.
InnoDB: File name ./ibdata1
InnoDB: File operation …