Permissions for n8n Chart?

Has anyone figured out the required file system permissions for the storage for Postgres etc with the n8n Chart? No matter what I try, including 999:999 full ownership + rwx, the PG container gets upset about not being able to set the permissions where it expects to put the database:

The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.

The database cluster will be initialized with locale "en_US.utf8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".

Data page checksums are disabled.

initdb: error: could not change permissions of directory "/var/lib/postgresql/data": Operation not permitted

“Operation not permitted” sounds like you have ACLs enabled on the dataset in question. If you do, you’ll need to remove them.

I don’t think so but I will check that out. Ty!