[Bug 732634] Re: Progress bar restarts from zero after copying files

[Colin Watson]

This bug is mostly full of misinformation; the PROGRESS REGION extension
has existed in ubiquity since before it was even called ubiquity.  I
suspect something is just breaking the protocol stream slightly.

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https://bugs.launchpad.net/bugs/732634

Title:
  Progress bar restarts from zero after copying files

Status in “ubiquity” package in Ubuntu:
  In Progress

Bug description:
  Ubuntu Natty alpha 3
  Ubuntu 12.10

  When the installer is "Copying files", the installation progress bar
  fills up completely. When the copying has finished, the progress bar
  restarts from zero. This makes it much less useful, as it raises the
  possibility that the progress bar will restart from zero again some
  unknown number of times.

  This was verified in usability testing of the Ubuntu 12.10 installer:
  three of three participants were surprised that the progress bar
  restarted from zero. For example: "The installation process is nearly
  finished, about 75%. Installing system? I’m actually taken to a new
  thing, I didn’t expect that. It will be nice to tell me the process. I
  don’t know how many stages, very frustrating, as I thought it was
  done. Then something else shows up."

  Instead, the installation steps should be allocated estimated
  fractions of the progress bar so that it fills only once for the
  entire installation.

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