How to install Ruby on Rails 3.0 on Ubuntu 10.10?

Question

After installing Ruby and Ruby Gems:

$ sudo apt-get install ruby rubygems
...
$ ruby -v
ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-linux]
$ gem -v
1.3.7
         


        

Answer 1

Ok, I hesitated to use rvm as it seemed to be aimed at solving problems I didn't intend to have (multiple ruby versions? c'mon, I just want to play with rails...) and installing from source is generally something I want to avoid...

Anyway, I gave in and followed along with http://rvm.beginrescueend.com/rvm/install/

$ bash < <( curl http://rvm.beginrescueend.com/releases/rvm-install-head )

Then (mostly suggested by the output of the above, but I needed to add libmysqlclient-dev):

$ sudo aptitude install build-essential bison openssl libreadline5 \
                        libreadline5-dev curl git zlib1g zlib1g-dev \
                        libssl-dev libsqlite3-0 libsqlite3-dev sqlite3 \
                        libxml2-dev libmysqlclient-dev

Then I edited my .bashrc as required and opened a new terminal.

$ rvm install 1.9.2
$ rvm --default use 1.9.2
$ ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [i686-linux]
$ gem install rails
$ rails -v
Rails 3.0.1

After creating a new project, I still had a few things to do to make it work:

$ rails new myproject --database=mysql
$ cd myproject
$ emacs config/database.yml # set passwords
$ bundle install
$ rake db:create
$ rails server

And finally it all seems to be working. I hope that helps someone else, it certainly wasn't a particularly pleasant intro to a framework. I've reordered the commands I actually entered to avoid double handling for anyone following along.