问题
i have a problem with my postgreSQL setup on my new Mac OSX Lion machine.
I can't seem to connect to the service
$ createuser -a -d _postgres
Password:
createuser: could not connect to database postgres: FATAL: password authentication failed for user
I have no chance to find the correct password. Any idea what could that be. I have the default setup with a localhost server. The same happens when I try to connect via pgAdmin.
$ su postgres
Password:
su: Sorry
I have no chance to find out what's wrong?
回答1:
try this:
$ sudo su postgres
And specify your own password.
回答2:
Does this work?
First get root access
$ su -
Password: RootPW
# su - postgres
来源：https://stackoverflow.com/questions/7765269/su-postgres-sorry