[Bug 1294877] Re: usb-creator fails to wipe usb device when the device has ext4 partition

[Timo Jyrinki]

Ok I changed the title to what seems to be the case also in this bug's
reported case.

To sum up my experiences:
- If you have no partition table, ie. whole USB stick formatted as a partition without a table (/dev/sdb mounted, not /dev/sdb1), you get bug #1300361 "'NoneType' object has no attribute 'get_cached_property'"
- If you have a normal ("old style") DOS partition table, but you have ext4 partition in there, you get this "Timed out waiting for object"
- It works if you have a USB stick with a partition table and the partition formatted with vfat

I've tested twice changing between ext4 and vfat so I can reproduce this
bug too but also a workaround is to use mkfs.vfat (or a similar tool) to
format the USB stick's partition to vfat format before starting the
Startup Disk Creator.


** Summary changed:

- usb-creator fails to wipe usb device
+ usb-creator fails to wipe usb device when the device has ext4 partition

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

Title:
  usb-creator fails to wipe usb device when the device has ext4
  partition

Status in OEM Priority Project:
  New
Status in “usb-creator” package in Ubuntu:
  Confirmed

Bug description:
  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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