Postgresql dump permission denied

Question

I get this error while trying to dump database, i entered

linuxuser $ sudo su postgres
linuxuser $ [sudo] password for linuxuser:...
$ pg_dump -h localhost mydb          


        

Answer 1

backup and restore can be done by any unpriviledged user that knows the postgres superuser password by changing permissions on the working directory:

% mkdir backup

% chmod 0777 backup

% su postgres

[enter password]

$ cd backup

$ pg_dump mydb >tempfile

$ exit

"tempfile" will be owned by postgres and same group as the user