Creating MariaDB database on network drive

I'm working with **confidential data** stored on a network drive, and I need to ensure that this data never leaves the network drive. The data is a **300GB** **.mysql** file that I need to import into a MariaDB database. My setup involves a remote machine where I have mounted this network drive with uid, gid set to ubuntu. My goal is to create the MariaDB database directly on the network drive due to the confidentiality requirements. I tried to change the datadir in the 50-server.cnf configuration file to a new directory located on the network drive. However, when I restart the MariaDB service, I encounter the following errors related to InnoDB:

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [ERROR] InnoDB: The data file './ibdata1' must be writable

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [ERROR] InnoDB: The data file './ibdata1' must be writable

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [Note] Plugin 'FEEDBACK' is disabled.

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [Note] Zerofilling moved table:  './mysql/plugin'

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [ERROR] Unknown/unsupported storage engine: InnoDB

Aug 13 06:11:15  mariadbd: 2024-08-13  6:11:15 0 [ERROR] Aborting

Aug 13 06:11:15  systemd: mariadb.service: Main process exited, code=exited, status=1/FAILURE

Aug 13 06:11:15  systemd: mariadb.service: Failed with result 'exit-code'.

I'm not very experienced with MariaDB or setting up databases on network drives, and I'm unsure how to resolve these errors. Any help would be greatly appreciated!