At NDTV, we tend to stick to LTS releases of Ubuntu in our servers. Due to the update restrictions, we usually end up building rubygems from source as the default package is outdated. I don’t like this solution as it messes up package dependencies. Turns out there is a PPA for rubygems that seems to be more frequently updated.
On releases older than 9.10, you have add the following lines to your sources.list
deb http://ppa.launchpad.net/ubuntu-on-rails/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/ubuntu-on-rails/ppa/ubuntu jaunty main
Replace jaunty with your Ubuntu release name
You will have to import the repository key as well
sudo apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 81C0BE11
On 9.10 and newer, adding the repository is as simple as:
sudo add-apt-repository ppa:ubuntu-on-rails/ppa
At this point, you can install/update rubygems like before
sudo aptitude update
sudo aptitude install rubygems
UPDATE: It seems ubuntu-on-rails does not contain rubygems 1.4+ yet. There is an alternative at ppa:voronov84/andreyv, but it also contains other updates for ruby, etc – so be careful while upgrading packages en masse.
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