I also had this problem with clonezilla-live-2.2.3-25-amd64.iso on Ubuntu 14.04 64 bit.
However it successfully created a bootable Ubuntu Server 14.04 installation disk on the same USB drive. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1208129 Title: Compares NoneType() and str(), hence fails to make bootable usb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/1208129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs