Edited: Friday 3 October 2025
    
    
  
  
 
archlinux postgres
After upgrading Postgres on local machine. to get rid of old data and start fresh
1mv /var/lib/postgres/data /var/lib/postgres/olddata
2sudo su postgres
3initdb --locale en_US.UTF-8 -D '/var/lib/postgres/data'
4exit
5sudo systemctl start postgresql
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