Latest rubygems on Ubuntu

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 Due to the update restrictions, we usually end up building rubygems from source as the default package is outdated.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

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