Please help on installing Rails

Question

I am tryng to install ruby on rails in centos server on AWS. I can't install rails on the server. It is giving some error. Here is what I am getting while installing rails.

#gem install rails
   ERROR:  Error installing rails:
    gzip error installing /usr/local/lib/ruby/gems/1.8/cache/activesupport-3.0.8.gem

Please help.

Answer 1

1. Make sure you have Ruby 1.9.2 installed. Rails 3 requires Ruby 1.8.7 or 1.9.2. Ruby-1.9.2 has a better performance.
2. Use "file" to determine the type of the 'gem' file you downloaded
3. If possible, use 'rvm' to install and manage Ruby, Rails and other gems. Warning: compilation on AWS is slow.

Answer 2

Install zlib-devel package on S.O. and recompile your ruby version