This issue happens with usb-storage devices formatted without a partition-table. This same problem is alluded to in bug #277865.
A workaround is to create a partition table and a new partition with GParted. The proper fix is for usb-creator to be able to copy the installation into a drive without partition or, at the very least, give a better explanation message for this failure mode. -- Unable to determine the partition number. https://bugs.launchpad.net/bugs/362917 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs