Re: Can't reinstall b/c don't know the very long installation password

On Fri, May 16, 2008 at 8:41 AM, LaRue, Patricia
<Patricia.LaRue@avocent.com> wrote:
> Experts:
>
>
>
> I installed PostgreSQL and created the initial "very long" password and
> wrote it down.  Someone else did something to change it and now neither one
> of us can log into the DB.  So I tried to uninstall and reinstall but my
> "very long" password is not recognized and without it I cannot complete the
> installation.  I even tried removing all PostgreSQL stuff from the registry.
>  Does anyone know how I can blow away wherever that password is located and
> start fresh?

Two ways to do this.

1: log in in single user mode.  To do so, shut down the db, then use
the postgres command to bring up the db in single user mode, like so:

postgres -D /my/data/dir --single

and then issue the command to change the password.

OR

2: change pg_hba.conf to trust on some known IP, hup the server
(pg_ctl -D /my/data/dir reload) and then log in as postgres and change
your password.