Ubuntu doesn't seem to like Asus motherboard's will not pick up USB 3.0 on my desktop or laptop... dead as a brick usb 3.0 drives only works on the USB 2.0 ... seems to be a long running saga on the Ubuntu forums, where they seem to have regressed some kernel changes.
lsusb command shows it's there ... and I run a multi-boot Win10/12.04/15.05 system .... 12.04 and Win10 are quite happy with the USB 3.0 ports
Would welcome any ideas
Apart from that the clean 15.04 installed system seems fine and is happily build an image at the moment ...... crossed fingers.
Upgrading from 14.04 -> 14.10 > 15.04 completely screwed my desktop system, had to restore!!