title: Installing RVM: getting error "There was an error(23)."
body: <p>I am trying to install Ruby Version Manager (RVM) without success.
  How to get through this error I am getting?</p>
  
  <pre><code>ubuntu@ip-172-31-0-20:/tmp$ rvm install ruby-1.9.3-p484
  Searching for binary rubies, this might take some time.
  No binary rubies available for: ubuntu/14.04/x86_64/ruby-1.9.3-p484.
  Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
  Checking requirements for ubuntu.
  Requirements installation successful.
  Installing Ruby from source to: /usr/local/rvm/rubies/ruby-1.9.3-p484, this may take a while depending on your cpu(s)...
  ruby-1.9.3-p484 - #downloading ruby-1.9.3-p484, this may take a while depending on your connection...
  Warning: Failed to create the file ruby-1.9.3-p484.tar.bz2.part: Permission
  Warning: denied
    0 9806k    0  1002    0     0  22905      0  0:07:18 --:--:--  0:07:18 23302
  curl: (23) Failed writing body (0 != 1002)
  There was an error(23).
  Checking fallback: http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.3-p484.tar.bz2
  Warning: Failed to create the file ruby-1.9.3-p484.tar.bz2.part: Permission
  Warning: denied
    0 9806k    0  1167    0     0   4300      0  0:38:55 --:--:--  0:38:55  4290
  curl: (23) Failed writing body (0 != 1167)
  There was an error(23).
  Failed download
  There has been an error fetching the ruby interpreter. Halting the installation.
  ubuntu@ip-172-31-0-20:/tmp$
  </code></pre>