title: Ubuntu (percise): libopenblas-dev not available (Chromebook/Crouton)
body: <p>Laptop: Asus C100P Chromebook</p>
  
  <p>OS: CromeOS with Crouton (chroot) Ubuntu Percise Ver 12.04.5 LTS</p>
  
  <p>Trying to set up my Python environment with Numpy and Theano.</p>
  
  <pre><code>sudo apt-get install libopenblas-dev
  </code></pre>
  
  <p>output</p>
  
  <pre><code>Reading Package lists... Done
  Building dependency tree       
  Reading state information... Done
  Package libopenblas-dev is not available, but is referred to by another package.
  This may mean that the package is missing, has been obsoleted, or is only available from another source
  
  E: Package 'libopenblas-dev' has no installation candidate
  </code></pre>
  
  <p>there seem to be no resources to suggest that the BLAS package shouldn't be available. <a href="https://www.howtoinstall.co/en/ubuntu/precise/universe/libopenblas-dev/" rel="nofollow">[How to install libopenblas-dev percise]</a></p>
  
  <p>according to my limited knowledge <a href="https://packages.debian.org/search?arch=arm&amp;searchon=sourcenames&amp;keywords=openblas" rel="nofollow">[this]</a> page would indicate that the ARM processor would have no problem with the package either, right?</p>
  
  <p>is there another way to install this package?</p>
  
  <p>EDIT: The packages i was trying to install (numpy and theano) seem to work without solving this problem. Could BLAS be base/native functionality in ChromeOS? (will keep question open in case libopenblas-dev may be an issue for future users)</p>