So if you just downloaded the latest Intel Graphics Installer and just found that it doesn’t support Ubuntu 14.10.
Fear not you can trick it into installing by doing the following:
sudo cp /etc/lsb-release /etc/lsb-release.backup
Then edit the file
sudo nano /etc/lsb-release
And put the following in there
This will allow the installer to proceed but you will also want to add the public key so updates work correctly:
wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg -O - | sudo apt-key add - wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-2 -O - | sudo apt-key add -