I'm running KDS in Ubuntu (tested on 14.04, 14.10 and 15.05).
When I run KDS without root permissions (without sudo), and I add MQXLite component, I get this message:
"Warning: Selected version does not exist in directory \opt\Freescale\KDS_2.0.0\eclipse\ProcessorExpert\lib\mqxlite\. (MQX Lite version)"
If I run KDS with sudo, no problems.