Rails - Jan 2011 - Need help in Installing Rails 3.0.3

This is my gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.9.2 (2010-12-25 patchlevel 136) [i686-linux]
  - INSTALLATION DIRECTORY: /home/arjunkishore/.rvm/gems/ruby-1.9.2-p136
  - RUBY EXECUTABLE: /home/arjunkishore/.rvm/rubies/ruby-1.9.2-p136/bin/ruby
  - EXECUTABLE DIRECTORY: /home/arjunkishore/.rvm/gems/ruby-1.9.2-p136/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-linux
  - GEM PATHS:
     - /home/arjunkishore/.rvm/gems/ruby-1.9.2-p136
     - /home/arjunkishore/.rvm/gems/ruby-1.9.2-p136@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/



I want to install rails 3.0.3 and sqlite3 gems. 

i am getting this error message..
Some of our users posted this problem in our group, but not the solution 
http://comments.gmane.org/gmane.comp.lang.ruby.rails/264192

gem install rails
ERROR:  http://rubygems.org/ does not appear to be a repository
ERROR:  Could not find a valid gem ''rails'' (>= 0) in any
repository








can anyone please explain how to fix this problem step by step please ..??
like step 1: type so and so in terminal 
step 2: ...
..
..


Thanks in advance :) 


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On Fri, Jan 7, 2011 at 8:10 PM, Arjun Kishore
<arjunitp-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> This is my gem env
>  - REMOTE SOURCES:
>     - http://rubygems.org/
> gem install rails
> ERROR:  http://rubygems.org/ does not appear to be a repository
> ERROR:  Could not find a valid gem ''rails'' (>= 0) in
any repository
The reference to  rubygems.org is out of date. Here''s what my gem
env (or `gem sources --list`) returns:

  - REMOTE SOURCES:
     - http://gems.github.com/
     - http://gemcutter.org/

You can add them (and remove the no longer operative one) from the
command line; for more info

 gem help sources

HTH,
-- 
Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
twitter: @hassan

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Hassan,

rubygems.org is (again) the definitive source:

http://update.gemcutter.org/2010/02/20/rubygems-org-move-complete.html

gemcutter.org redirects to rubygems.org.

On Jan 9, 7:01 pm, Hassan Schroeder
<hassan.schroe...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> The reference to  rubygems.org is out of date.
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On Sun, Jan 9, 2011 at 4:28 PM, djangst
<djangst-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> rubygems.org is (again) the definitive source:
>
> http://update.gemcutter.org/2010/02/20/rubygems-org-move-complete.html
Ah, crap. Guess I missed that memo  :-)

Never mind, then, and sorry for the noise.

-- 
Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
twitter: @hassan

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I know that sounds trivial, and the thread is two weeks old, but are you
sure you are connected to the Internet during that tests? It took me
yesterday 2 hours to find that problem on my local staging environment. Due
to configuration problems I could connect via ssh and remote control, but my
network did not route requests from the staging to the Internet, the just
got lost.

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Actually it wasn''t trivial.  It helped me :0)

After the RubyGem/Bundler update mess yesterday, I was afraid there
was yet another problem with my set up.  Turns out my Time Machine''s 5
GHz network was insanely unstable and caused the error. If it weren''t
for your post, I would have spent hours searching for the problem (as
I''m a Rails newbie).  A big thank you to you Mr. Melzer is in order,
so "Thank you!"

On Jan 25, 4:56 am, Norbert Melzer
<timmel...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:
> I know that sounds trivial, and the thread is two weeks old, but are you
> sure you are connected to the Internet during that tests? It took me
> yesterday 2 hours to find that problem on my local staging environment. Due
> to configuration problems I could connect via ssh and remote control, but
my
> network did not route requests from the staging to the Internet, the just
> got lost.
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It seems the problem is already solved, as noted in the external
source: http://permalink.gmane.org/gmane.comp.lang.ruby.rails/264228

It was a network problem.

On 2 feb, 05:35, Mirage2008
<rose.emm...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Actually it wasn''t trivial.  It helped me :0)
>
> After the RubyGem/Bundler update mess yesterday, I was afraid there
> was yet another problem with my set up.  Turns out my Time
Machine''s 5
> GHz network was insanely unstable and caused the error. If it
weren''t
> for your post, I would have spent hours searching for the problem (as
> I''m a Rails newbie).  A big thank you to you Mr. Melzer is in
order,
> so "Thank you!"
>
> On Jan 25, 4:56 am, Norbert Melzer
<timmel...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
>
>
>
>
>
>
>
> > I know that sounds trivial, and the thread is two weeks old, but are
you
> > sure you are connected to the Internet during that tests? It took me
> > yesterday 2 hours to find that problem on my local staging
environment. Due
> > to configuration problems I could connect via ssh and remote control,
but my
> > network did not route requests from the staging to the Internet, the
just
> > got lost.
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