Install Ruby on Rails 5 on Ubuntu: TLDR
Maybe you want to install a newer version? Install Ruby on Rails 6
- Install Ruby on Rails 5:
rvm install ruby-2.7.2
rvm --default use 2.7.2
rvm uninstall 2.7.1
gem install rails -v 5.2.4.3
- Set up Postgresql:
sudo apt install postgresql libpq-dev
sudo su postgres
createuser --interactive
ubuntu
y
exit
Extended Tutorial on installing Postgresql