title: Error on installing ruby rvm
body: <p>On <a href="http://ryanbigg.com/2010/12/ubuntu-ruby-rvm-rails-and-you/" rel="nofollow">installing Ruby1.9.3 with RVM</a> <code>rvm install 1.9.3</code>, It show following message.</p>
  
  <pre><code>The program 'rvm' is currently not installed.  You can install it by typing:
  sudo apt-get install ruby-rvm
  </code></pre>
  
  <p>After that I had tried to install ruby-rvm but it shows following message at last.</p>
  
  <pre><code>...
  Setting up libreadline-gplv2-dev (5.2-11) ...
  Setting up ruby-rvm (1.6.9-0ubuntu2) ...
  dpkg-statoverride: error: syntax error: unknown group 'admin' in statoverride file
  dpkg: error processing ruby-rvm (--configure):
   subprocess installed post-installation script returned error exit status 2
  Errors were encountered while processing:
   ruby-rvm
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  </code></pre>
  
  <p>after receving this message I look up at <a href="https://rvm.io//rubies/installing/" rel="nofollow">here</a> but I don't able to figure what above error code means.</p>
  
  <pre><code>virus@virus-pc:~$ source /usr/local/rvm/scripts/rvm
  
  virus@virus-pc:~$ type rvm | head -1
  rvm is a function
  
  virus@virus-pc:~$ rvm use 1.9.3 --default
  ruby-1.9.3-p194 is not installed.
  To install do: 'rvm install ruby-1.9.3-p194'
  
  virus@virus-pc:~$ rvm install ruby-1.9.3-p194
  ruby-1.9.3-p194 - #configure
  ruby-1.9.3-p194 - #download
  Archive checksum did not match, downloading again.
  rm: cannot remove `bin-ruby-1.9.3-p194.tar.bz2': Permission denied
  curl: Can't open 'bin-ruby-1.9.3-p194.tar.bz2'!
  curl: try 'curl --help' or 'curl --manual' for more information
  There was an error(23), please check /usr/local/rvm/log//*.log. Next we'll try to fetch via http.
  Trying ftp:// URL instead.
  curl: Can't open 'bin-ruby-1.9.3-p194.tar.bz2'!
  curl: try 'curl --help' or 'curl --manual' for more information
  There was an error(23), please check /usr/local/rvm/log//*.log
  Downloading https://rvm.io/binaries/ubuntu/12.04/x86_64/ruby-1.9.3-p194.tar.bz2 failed.
  Mounting remote ruby failed, trying to compile.
  Installing Ruby from source to: /usr/local/rvm/rubies/ruby-1.9.3-p194, this may take a while depending on your cpu(s)...
  ruby-1.9.3-p194 - #downloading ruby-1.9.3-p194, this may take a while depending on your connection...
  mkdir: cannot create directory `/usr/local/rvm/log/ruby-1.9.3-p194': Permission denied
  tee: /usr/local/rvm/log/ruby-1.9.3-p194/fetch.log: No such file or directory
  bash: /usr/local/rvm/log/ruby-1.9.3-p194/fetch.log: No such file or directory
  Error running '/usr/local/rvm/scripts/fetch http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p194.tar.bz2', please read /usr/local/rvm/log/ruby-1.9.3-p194/fetch.log
  There has been an error fetching the ruby interpreter. Halting the installation.
  bash: /usr/local/rvm/user/installs.new: Permission denied
  mv: cannot stat `/usr/local/rvm/user/installs.new': No such file or directory
  bash: /usr/local/rvm/user/installs: Permission denied
  </code></pre>
  
  <p>I had tried to install it and wasted 3 days but couldn't able to succeed on installing ruby on rails and tackle above error.As I'm new to ruby any help were appreciated.</p>
  
  <p>Environment: Ubuntu-12.04 64 bits</p>