I would like to install antergos to a usb key. I have prepared a second usb key with the antergos live system, and have started the installer from there. When getting to the partition setup, the installer only shows the internal hard disk of my computer, not the usb key. The usb key is of course plugged into the computer, and I can mount the currently existing partitions without problems.
Is there a way to tell the installer to install to the usb key? If not, is there another way to install antergos?