As I wrote in bug #722019: I had the problem and my workaround was to run usb-creator-gtk as a regular user (i.e.: not as root) and also by slowly take my time to enter my password when usb-creator-gtk is trying to install the bootloader.
My best guess as the why: I believe the partition table is set to be re- read just before installing the bootloader and since a USB device can sometimes take a while to disappear/reappear the application is just trying too fast to install the bootloader. There could be something also with the FTL layer being busy as hell with the copying/unmount/sync that just happened. (FTL being an important component in the USB key's firmware) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/529366 Title: Regression: usb-creator-gtk fails to set the boot flag on the partition and exits. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-creator/+bug/529366/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
