I was unable to recreate this using usb-creator-gtk version 0.2.67. It may be worth noting that udisks --dump works for me and it failed when apport was generating this crash report.
UDisksDump: Error: [Errno 2] No such file or directory: 'udisks' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1446646 Title: Vivid usb-creator fails to install bootloader To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/1446646/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs