Gem install rails

Rails
1

May be it is a question of rem or rubye$B!$e(Bbut I need your help.
When I use gem install rails,it fails.But I use the same command,it
passed in another computer.
OK. I use
hector@hector-laptop:~$ sudo gem install rails --no-rdoc --no-ri
The result:
source gems.rubyonrails.org not present in cache

But I try to use wget to get gems.rubyonrails.org. Anything is okay.
Here is my environment:
gem environment
RubyGems Environment:

  • RUBYGEMS VERSION: 1.1.0 (1.1.0)
  • RUBY VERSION: 1.8.6 (2007-09-24 patchlevel 111) [i486-linux]
  • INSTALLATION DIRECTORY: /usr/lib/ruby/gems/1.8
  • RUBY EXECUTABLE: /usr/bin/ruby1.8
  • RUBYGEMS PLATFORMS:
    • ruby
    • x86-linux
  • GEM PATHS:
    • /usr/lib/ruby/gems/1.8
  • GEM CONFIGURATION:
    • :update_sources => true
    • :verbose => true
    • :benchmark => false
    • :backtrace => false
    • :bulk_threshold => 1000
  • REMOTE SOURCES:
2

Sounds like you have different sources on the two machines. There was
talk recently about where best to source for rails, but I don’t
remember quite what the answer was.
Anyway, you want to run this on both machines:
$ gem sources

Then you can add missing sources (like the one gem is complaining
about above, gems.rubyonrails.org) with:
$ gem source

-Dale