After burning Qubes iso on a USB stick using dd I boot it in UEFI mode and I got a problem with the following symptom :If I select Verify source and install Qubes the process freezes after the test passes.If I select Install Qubes I got this :Ignoring BGRT : invalid status 0 (expected 1)mce : unable to init device /dev/mcelog (rc:-16)/etc/vconsole.cong line 1: 1=: command not found/etc/vconsole.cong line 1: 1=: command not foundsd 4:0:0:0:[sdb] no caching mode page foundsd 4:0:0:0:[sdb] assuming drive cache : write throughmount: /dev/sdb is write protected, mounting read-onlyAnd then the booting process freezes completely and I can only reboot with ctrl+alt+del. I have to add that the Qubes graphical logo blinks very briefly before it comes back to the command line and freezes.Any idea on what is happening ? Is there a way to activate a verbose mode so there is more detail on the failure reason ? 
Installing Qubes 3.1 : boot process freezes after Qubes logo blinks
system installation;qubes