Many MAC users when trying to create a database would see this error.
Can not access lock files directory /tmp/firebird/
In order to fix this you have two options:
- Give write/read permissions to `/tmp/firebird` to your user
- use sudo to run isql
Let’s fix the problem using sudo
- Type your password
create database '/Users/marcio/Dev/_DBS/test.fdb' user 'SYSDBA' password