[Bug 1424915] Re: dd an ubuntu iso to usbstick, then it can't be erased with usb-creator

[Jarno Suni]

Workaround is to partition the disk by e.g. gparted to fat32 format. Or
maybe just remove existing partitions by it?

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https://bugs.launchpad.net/bugs/1424915

Title:
  dd an ubuntu iso to usbstick, then it can't be erased with usb-creator

Status in usb-creator package in Ubuntu:
  Triaged

Bug description:
  1) The release of Ubuntu you are using, via 'lsb_release -rd' or
  System -> About Ubuntu

  Ubuntu 14.04

  2) The version of the package you are using, via 'apt-cache policy
  pkgname' or by checking in Software Center

  usb-creator-gtk 0.2.56.3

  3) What you expected to happen

  1. prepare an isohybrid ISO image, such as the ubuntu ISO:
  http://releases.ubuntu.com/14.04.1/ubuntu-14.04-desktop-amd64.iso
  2. plug in the usbstick and dd the iso to it
  sudo dd if=ubuntu.iso of=/dev/sdb bs=1M
  3. eject the usbstick
  sudo eject /dev/sdb
  4. plug out & in the usbstick
  5. launch usb-creator-gtk and erase the usbstick

  The usbstick should be erased successfully

  4) What happened instead

  An error dialog is popped with below messages:

  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 235, in Format
      part.call_set_type_sync('0x0c', no_options, None)
  gi._glib.GError: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error setting partition flags on /dev/sdb2: Command-line `sfdisk --change-id "/dev/sdb" 2 0x0c' exited with non-zero exit status 1: 
  WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util sfdisk doesn't support GPT. Use GNU Parted.

  Use the --force flag to overrule this check.

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