Why postgresql on mac asks me for password after fresh install?

Question

I just installed postgresql on a Macbook with brew install postgresql. Then I try to psql, but it requires password and then show

Answer 1

The above did not work for me. The below steps worked for me:

Step 1: Uninstall Postgres using the following steps:

sudo /Library/PostgreSQL/10/uninstall-postgresql.app/Contents/MacOS/uninstall-postgresql

PS: my postgres version is 10

Step 2: Remove Postgresql user

System Preference > userse & Groups > Unlock > remove postgresql user by clicking "-"

Step 3: Remove existing databases

rm -rf /usr/local/var/postgres/*

Step 4: Install and Start Postgres using brew

brew update
brew install postgresql
brew services start postgresql

Step 5: Create database

initdb /usr/local/var/postgres -E utf8

You can start accessing postgres

psql -h localhost -d postgres