High Sierra restored from ISO to USB drive stops at the stop sign
For those trying to create bootable USB from a downloaded ISO file

In my case it was an incorrect way of burning ISO file into USB pen drive/stick using Disk Utility's restore from a downloaded standalone ISO image file. The USb pen wasn't bootable until it was created from files contained inside the ISO using the above command.

STEPS:


Mount downloaded ISO file by double clicking on it (will mount under /Volumes/Install\ macOS\ High\ Sierra)
Run a slightly modified above command and amend source and destination paths if necessary (I used DiskUtility to erase my USB with name set to Untitled and Mac OS Extended (Jurnaled) file type as it failed on APFS file type):

$ sudo /Volumes/Install\ macOS\ High\ Sierra/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled



More info on different releases: https://support.apple.com/en-gb/HT201372