There is a known problem with ruby on Debian or Ubuntu with gem command not working properly. Here is how to fix it.
So here is how to install RoR from source:
wget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p299.tar.gz
tar -zxf ruby-1.8.7-p299.tar.gz
cd ruby-1.8.7-p299
./configure
make
make install
cd ..
install ruby gems
tar -zxf rubygems-1.3.7.tgz
cd rubygems-1.3.7
ruby setup.rb
cd ..
gem install rails
When you try to use gem command you will see something like this:
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require’: no such file to load — zlib (LoadError)
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:1
….
The solution is described on lots of website on the internet:
tar xvzf ruby-zlib-0.6.0.tar.gz
cd ruby-zlib-0.6.0
ruby extconf.rb
make
make install
If ruby extconf.rb fails, try to install zlib1g-dev package via apt.
Finally install rails
However I have only found one website to be refered as a source for missing lib: http://www.blue.sky.or.jp/atelier/ruby/ruby-zlib-0.6.0.tar.gz which didn’t work when I needed this file. I thought it’s a good idea to serve this file here.
If you see following error:
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require’: no such file to load — openssl (LoadError)
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’
from /usr/local/lib/ruby/gems/1.8/gems/puppet-2.6.0/lib/puppet/ssl.rb:3
Fix it by:
ruby extconf.rb
make
make install
On Lenny you need libssl-dev package installed to do this.
