OpenELEC:/ # apt-get install linux-headers-`uname -r`
 There is no working 'apt-get'.
 'apt-get' is a command to install, update and remove software which
 is stored in a non local repo. 'apt-get' does nothing then connecting to such
 repo, downloads the software, unpacks the software, updates a big local
 local database with all filepaths and other informations about the
 installed software or removes or updates installed Software.
 With OpenELEC it is not possible to change the system for security and
 stability reasons so even 'apt-get' would not be able to do this.
 We also dont have and want to maintain such a repo for various other
 great reasons.
 Also Ubuntu or Debian packages are often outdated and not compatible
 with OpenELEC
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