[Bug 1589028] Re: Improper blocksize set by usb-creator, leads to problems during formatting

[Marc Deslauriers]

Thanks for reporting this issue, but this isn't an issue with usb-
creator.

1000000 is in fact an acceptable number for the _builtin_dd() function
and has nothing to do with the error message you are seeing in Gparted.

Gparted is confused with the special way the bootable image is created
to make it work with both legacy machines, macs, and UEFI machine.

I'm reassigning this bug to the parted package, where the problem
actually lies.

** Package changed: usb-creator (Ubuntu) => parted (Ubuntu)

** Bug watch added: Debian Bug tracker #758045
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758045

** Also affects: parted (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758045
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1589028

Title:
  Improper blocksize set by usb-creator, leads to problems during
  formatting

Status in parted package in Ubuntu:
  Confirmed
Status in parted package in Debian:
  Unknown

Bug description:
  When ever I create a bootable USB using usb-creator , and when I try
  to format it after my work is done, I get this error

  “The Driver descriptor says physical block size is 2048 bytes, but
  Linux says it is 512” in Gparted. (screen shot in the attachments)

  Furthermore , The USB is divided into strange partitions (image
  attached). and shows the 16GB partition as 60GB partition.

  I presume that this is because of setting the blocksize to 1000000 by
  this tool : as in the source code here : https://bazaar.launchpad.net
  /~usb-creator-hackers/usb-creator/trunk/view/474/bin/usb-creator-
  helper#L111

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: usb-creator-gtk 0.3.2
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Jun  4 08:53:43 2016
  InstallationDate: Installed on 2016-05-30 (4 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  SourcePackage: usb-creator
  UpgradeStatus: No upgrade log present (probably fresh install)
  UsbCreatorLog:
   usb-creator 2016-06-04 08:53:29,852 (DEBUG) backend.py:24: UDisks2Backend
   usb-creator 2016-06-04 08:53:30,152 (DEBUG) backend.py:64: detect_devices
   usb-creator 2016-06-04 08:53:30,157 (DEBUG) backend.py:104: drive added: /org/freedesktop/UDisks2/block_devices/sr0
   usb-creator 2016-06-04 08:53:30,157 (DEBUG) backend.py:118: not adding device: 0 byte disk.
   usb-creator 2016-06-04 08:53:32,702 (DEBUG) backend.py:181: cancel_install

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