title: MiniMagick::Error failed:
body: <p>I install Redactor-rails ruby gem with instructions from official page on github<a href="https://github.com/SammyLin/redactor-rails" rel="nofollow"> SammyLin/redactor-rails
  </a>, all it's ok, but when I'm trying to upload image I have error like this:</p>
  
  <p>Started POST "/redactor_rails                                                          /pictures?authenticity_token=aRAR6p4FMDNmdh%2FgqP24kYSIo0CWXjnEgYGBli%2FjcX8%3D" for 127.0.0.1 at 2013-07-17 20:34:34 +0400
  Processing by RedactorRails::PicturesController#create as HTML
    Parameters: {"file"=>#>, "authenticity_token"=>"aRAR6p4FMDNmdh/gqP24kYSIo0CWXjnEgYGBli/jcX8="}
    User Load (0.3ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 134 LIMIT 1
  Completed 500 Internal Server Error in 611ms</p>
  
  <p>MiniMagick::Error (Command ("identify -quiet -ping -format %wn /home/igor/rubycode/badm.by/public/uploads/tmp/1374078874-9075-4230/<strong><em>_</em>__<em>_</em>____</strong>_2013-05-19_22_58_40.png") failed: {:status_code=>127, :output=>"sh: 1: identify: not found\n"}):</p>
  
  <p>Explain me please why I have this error, i google I've found nothing about this error.</p>