Install a Redmine on Ubuntu system

# How to install a Redmine on Ubuntu system

Ref to: https://www.linode.com/docs/applications/project-management/how-to-install-and-configure-redmine-on-ubuntu-16-04

# Change the password of admin user

Above all, you need to switch into root role

```

su -

your_password

```

```

cd /data/redmine/redmine

RAILS_ENV=production rails c

```

```

u = User.first
u.password = "your_new_password"
u.save!

```