Requirements
Pendrive 2.0 (>=8GB)
"Install macOS Sierra app" (https://itunes.apple.com/de/app/macos-sierra/id1127487414?l=en)(Around 5GB)
Working Mac
Installing Clover to USB
Get a USB 2.0 Pendrive (8GB and above)
Before you can partition the USB, you must determine what the disk identifier is. With the USB plugged in to the computer, use 'diskutil list':
In Terminal:
diskutil list
In my case, output:
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition