[Bug 995335] Re: ubiquity installer should show summary screen before performing destructive operations

[Dmitrijs Ledkovs]

After discussion with mpt, we believe that summary screen is not
necessary any more since enough warnings are shown. We did discuss to
add grub install destination in multi-disk scenarios. Please file
additional bugs if you find when not enough warnings about data loss
were given & something did not go according to plan.

** Changed in: ubiquity (Ubuntu)
       Status: Confirmed => Opinion

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https://bugs.launchpad.net/bugs/995335

Title:
  ubiquity installer should show summary screen before performing
  destructive operations

Status in “ubiquity” package in Ubuntu:
  Opinion

Bug description:
  Talking to Evan, apparently the installer used to show a summary
  screen. After a few observed issues this cycle (for example, bug
  684309 and bug 813134), I think it makes sense to re-add the summary
  screen before the installer makes any destructive changes to the
  disk(s).

  By providing a summary screen, the user is given a final chance to
  abort the install if they disagree with the heuristically determined
  installer strategy.

  This summary screen should be displayed by default such that the user
  must click "yes"/"next" to accept the changes. This screen should also
  present a "go back" button to allow the user to make other choices.

  The summary screen ideally would display both the existing disk layout
  and the proposed disk layout, for the latter showing:

  - which partitions are to be reformatted
  - which FS type each partition will become
  - which disk the bootloader will be installed to

  I feel that users would much rather be presented with a summary than
  have the possibility of data loss (perfect example of where the
  Principle of Least Surprise should apply I think :-)

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