I had this issue and then purged my system of the Intel Linux Graphics Installer packages, downgrading packages to the latest available in trusty-updates as appropriate. After doing that I was successfully able to install 14.04.2 using the Utopic HWE stack.
I had this issue and then purged my system of the Intel Linux Graphics Installer packages, downgrading packages to the latest available in trusty-updates as appropriate. After doing that I was successfully able to install 14.04.2 using the Utopic HWE stack.