Done some debugging. My 8 Gb USB stick had one large vfat partition. Somehow, usb-creator could not detect this partition, it would get stuck at the message: "Persistence size: 128 MB".
So I installed gparted and deleted this partition and created 2 new fat16 partition of 4 GB each. Next, usb-creator worked fine.
The error seems to come from install_bootloader(self) in /usr/share/pyshared/usbcreator/backend.py because the line "tmp = device.lstrip(rootdev)" would return no value.
Done some debugging. My 8 Gb USB stick had one large vfat partition. Somehow, usb-creator could not detect this partition, it would get stuck at the message: "Persistence size: 128 MB".
So I installed gparted and deleted this partition and created 2 new fat16 partition of 4 GB each. Next, usb-creator worked fine.
The error seems to come from install_ bootloader( self) in /usr/share/ pyshared/ usbcreator/ backend. py because the line "tmp = device. lstrip( rootdev) " would return no value.