David's Computer Stuff Journal

ruby-oci8 and libaio

Posted by David N. Welton Fri, 03 Jul 2009 15:23:00 GMT

Not of concern to most people reading this via a feed, but it's one of those things I think is nice to write up as a public service, should anyone else encounter the same error. I'm stuck doing some Rails work with Oracle, and so I needed to get ruby-oci8 working:

http://ruby-oci8.rubyforge.org/en/InstallForInstantClient.html

These instructions are pretty good. I followed them, the gem said it had been installed correctly.... and yet:

ERROR: ActiveRecord oracle_enhanced adapter could not load ruby-oci8 library. Please install ruby-oci8 library or gem.
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:76:in
`establish_connection':RuntimeError: Please install the oracle_enhanced adapter:
`gem install activerecord-oracle_enhanced-adapter` (LoadError)

Argh! After some straceing, I finally figured out what was missing: the libaio1 package. You need to have it or things will fail like this. It's very odd that the installation doesn't complain about it.

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  1. Aaron M. Ucko
    about 23 hours later:

    Last I checked, libao was an audio library. Did you mean libaio1?

  2. David N. Welton
    about 18 hours later:

    Woops, you're right Aaron - transcription error. I hurried that little tidbit out while at work and was pretty quick about it.