I tried several usb flash drives, now I'm going with a 2GB one and the nano image installer, using a front usb port and that brings me past the error message on the first try! Thank you very much guys!
On a side note: the installer user doesn't work, root does with the password mentioned on the linked website. Now I have to figure out how to properly install :-)
On a side note: the installer user doesn't work, root does with the password mentioned on the linked website. Now I have to figure out how to properly install :-)