installing bcrypt-ruby (rails 3.2.8 using devise) on a raspberry pi

Question

I'm having fun trying to get my raspberry pi setup as a staging server. It's a rails app 3.2.8 using devise for authentication.

When it's bundling the install is failing with

Installing bcrypt-ruby (3.0.1) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension

If I "sudo gem install bcrypt-ruby -v '3.0.1' " then it installs fine, but the capistrano deploy is always failing.

Any ideas? I'd rather not deploy as sudo as that's not how it works in production.

Answer 1

You may not have a working ruby development library installed. Check your Ruby version:

$ ruby --version

Assuming that you have ruby v1.9.3, install ruby1.9.3-dev. The version number doesn't matter; just use the same version number that you have installed.