So I finally found the answer after searching for a year! First identify which drive letter the USB stick has received from the kernel
sudo parted --list For example this USB drive is on Device Serial Disk h: (/dev/sdh) Model: KINGSTON DataTraveler G3 (scsi) Schijf /dev/sdh: 4001MB Use the information to wipe all the partition tables and data from the drive ⚠ WARNING THIS NEXT STEP WILL DESTROY ALL DATA ON THE DRIVE ⚠ sudo wipefs --all /dev/sdX Make sure that you have chosen the correct USB stick for the value of X so you don't accidentally wipe your harddrive/SSD Warning message "The driver descriptor says the physical block size is 2048 bytes, but Linux says that it is 512 bytes." Means that the dd command in behind the nice GUI forgot to specify the bs=2048 option. Background It's not that the unused space is wasted. The USB disk has been corrupted by USB Startup Disk Creator. For some reason USB Startup Disk Creator has become CD-ROM creator. It writes your USB-Stick to iso9660 format which is only intended for CD-ROM's. Since new computers don't come with CD-ROM players or writers anymore this is a regression bug -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1708881 Title: USB Stick corrupted - The driver descriptor says the physical block size is 2048 bytes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/1708881/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
