It wouldn't even let me install Steam. I had to remove, update, then install again. Then, once installed, I encountered the "Couldn't set up Steam data - please contact technical support" and fixed using what is described here: http://askubuntu.com/questions/470436/steam-cannot-set-up-steam-data
I made the HWE upgrade on a second machine as described here: https:/ /wiki.ubuntu. com/Kernel/ LTSEnablementSt ack
Steam broke on the second machine as well.
It wouldn't even let me install Steam. I had to remove, update, then install again. Then, once installed, I encountered the "Couldn't set up Steam data - please contact technical support" and fixed using what is described here: http:// askubuntu. com/questions/ 470436/ steam-cannot- set-up- steam-data