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[Ewan <1294877@xxxxxxxxxxxxxxxxxx>]

Some variation of this(these?) bug(s?) still seems to exist on vivid. I
landed here googling my original error message. While attempting to
workaround / document it I now experience an error:

org.freedesktop.DBus.Python.GLib.Error: Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/service.py", line 707, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/share/usb-creator/usb-creator-helper", line 274, in Format
    part.call_set_flags_sync(boot_dos_flag, no_options, None)
GLib.Error: udisks-error-quark: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error setting partition flags on /dev/sdb2: Command-line `parted --script "/dev/sdb" "set 2 boot off"' exited with non-zero exit status 1: Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.
 (0)

WORKAROUND:
I was able to work around this for my case as described in http://askubuntu.com/questions/485357/unknown-error-from-startup-disk-creator - "right click on the .iso in the file explorer and select 'Open With Disk Image Writer' and then 'restore' the ISO image to the selected USB device."

Not sure if this comment really belongs in this bug or a new one

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https://bugs.launchpad.net/bugs/1294877

Title:
  Error erasing device: Unknown or unsupported erase type `'

Status in OEM Priority Project:
  Fix Released
Status in OEM Priority Project trusty series:
  Fix Released
Status in udisks:
  Invalid
Status in udisks2 package in Ubuntu:
  Invalid
Status in usb-creator package in Ubuntu:
  Fix Released
Status in udisks2 source package in Trusty:
  Invalid
Status in usb-creator source package in Trusty:
  Fix Released

Bug description:
  [Impact]

   * This bug is a runtime exception caused by invalid erase type.
   * With this bug users can not erase disks with usb-creator.

  [Test Case]

   * Prepare an usbstick with any partition(s),
     this could be done with "gparted".
   * Launch usb-creator-gtk or usb-creator-kde.
   * Insert the usbstick, click the button "Erase Disk".
   * It will popup an exception window with the error message similar to:

          Traceback (most recent call last):
            File "format.py", line 7, in <module>
              block.call_format_sync('dos', GLib.Variant('a{sv}', {'erase': GLib.Variant('s', '')}), None)
          gi._glib.GError: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error erasing device: Unknown or unsupported erase type `'

   * Please be noted, the erase operation may still fail even with
     this bug properly fixed due to some other bugs, such as bug #1318954.

  [Regression Potential]

   * Since the erasing operation is also blocked by other bugs,
     we may not be able to verify the entire erasing operation,
     in such a case we can not promise the effect of the patch,
     and it may (although not sure to) has other side effect such as:

  [1]: http://udisks.freedesktop.org/docs/latest/gdbus-
  org.freedesktop.UDisks2.Block.html#gdbus-method-org-freedesktop-
  UDisks2-Block.Format

  A dialog with the following text appears anytime I try to wipe my usb
  pen (both when partitioned and unpartitioned):

  org.freedesktop.DBus.Python.gi._glib.GError: Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/dbus/service.py", line 707, in _message_cb
      retval = candidate_method(self, *args, **keywords)
    File "/usr/share/usb-creator/usb-creator-helper", line 239, in Format
      block.call_format_sync('dos', GLib.Variant('a{sv}', {'erase': GLib.Variant('s', '')}), None)
  gi._glib.GError: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error synchronizing after initial wipe: Timed out waiting for object

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: usb-creator-gtk 0.2.55
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Mar 19 23:26:15 2014
  InstallationDate: Installed on 2013-10-05 (165 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20131005)
  SourcePackage: usb-creator
  UpgradeStatus: Upgraded to trusty on 2013-12-10 (99 days ago)

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