Cannot change password for user postgres in postgresql

Posted by dhaval on Server Fault See other posts from Server Fault or by dhaval
Published on 2010-03-01T17:08:22Z Indexed on 2010/03/28 21:03 UTC
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Filed under:

postgresql-8.3

|

password

I have made the following entry in pg_hba.conf

local all all trust

but still

su postgres

does not accept blank as password. I am not able to run psql nor pg_ctl for same reason as most of the files are owned by postgres.

EDIT1

dhaval@ubuntu:~$ su -c "pg_ctl reload -D template1"
Password: 
su: Authentication failure

dhaval@ubuntu:~$ su -c psql
Password: 
su: Authentication failure

I am giving the root password above but I guess its expecting "postgres" superuser password. I dont have the same. I need to reset it.

EDIt2

dhaval@ubuntu:~$ sudo -i -u postgres
[sudo] password for dhaval:
postgres@ubuntu:~$ psql
Welcome to psql 8.3.7, the PostgreSQL interactive terminal.

The above has taken me postgreSQL command prompt. But I am still not sure why the "trust" was not working.

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