Received my Dell XPS15 9550 today and the first thing on the todo list was installing Ubuntu 16.
After some initial challenges which were fixed because the SSD was configured in the BIOS with "Raid On" I got to the step "Erase harddrive and install Ubuntu". It stayed at that step for 2 hours.
When I rebooted the laptop it wouldn't boot, the BIOS has no SSD anymore, under boot I can't select any medium and if the laptop goes past BIOS it ends up in Dell Support Assist with the error "No bootable devices found"
I've been roaming forums for the last couple of hours trying to find a solution but nothing helped and I'm at a loss. Hopefully someone here knows the answer!