How to move location of postrgresql 13 database - postgresql

Question

I am looking to move the location of a pgsql 13 database from it's default to another disk.
I initially followed this guide link
But this is for v9.5, not 13. My challenge is that the location of the database - found from running the below command - is also where the configuration files are stored.
SHOW data_directory;
data_directory
------------------------
/var/lib/pgsql/13/data
(1 row)
SHOW config_file;
config_file
----------------------------------------
/var/lib/pgsql/13/data/postgresql.conf
(1 row)
With version 9.5 the configuration files were in a separate area, so at this point I got stuck with the guide.
It seems if I want to move the database location I also have to move all the configuration files as well.
I have tried moving the entire data folder to the new location and restarting postgres but no luck.
Any help would be appreciated.

Answer 1

Assuming your configuration files are located under $PG_DATA, where they belong:
Shut down the (old) database
Copy the data directory to the new location (use cp -rp, or rsync -acv, or tar, or cpio, ...) Make sure that file attributes and ownership are preserved by the copy. The pgdata directory should be mode == 0600, and owner.group == postgres.postgres.
[optionally] rename the old data directory
[optionally] you may want to edit the configuration files at the new location
edit the startup file (in /etc/init.d/postgresql ) and make sure $PG_DATA points to the new location. [note: this is for ubuntu; other distributions may us a different starting mechanism]
Start the new database, and check if it runs (ps auxw| grep postgres, and if you can connect (psql -U postgres postgres)
[optionally] remove the directory tree at the old location.