progress is misleading due to disk buffer

[Marco Biscaro]

The progress of the disk creation is misleading due to disk buffer.

The progress bar fills up in seconds and then the process is stuck on "Finishing" phase for several minutes, while the data is actually written to disk.

This is bad UX and can cause confusion to users.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: usb-creator-common 0.3.2 [modified: usr/share/usb-creator/usb-creator-helper]
ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Nov 13 14:37:57 2017
InstallationDate: Installed on 2016-11-12 (365 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: usb-creator
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

This bug was fixed in the package usb-creator - 0.3.4

---------------
usb-creator (0.3.4) bionic; urgency=medium

  * Improve progress bar accuracy due to disk buffering (LP: #1731977)
    - Thanks to Marco Biscaro for the fix!

 -- Marc Deslauriers <email address hidden> Fri, 02 Feb 2018 09:46:54 -0500

[corrado venturini (corradoventu)]

Fix Relesed for Ubuntu Bionic, but on Ubuntu Artful I still have the old one:
corrado@corrado-p6-aa:~$ apt policy *usb-creator*
usb-creator-common:
  Installed: 0.3.3
  Candidate: 0.3.3
  Version table:
 *** 0.3.3 500
        500 http://archive.ubuntu.com/ubuntu artful/main amd64 Packages
        100 /var/lib/dpkg/status