[Bug 1418706] [NEW] Vivid: UEFI: blank drive incorrectly detected as existing BIOS-mode install

[Jason Gerard DeRose]

Public bug reported:

When doing a UEFI-mode install using the latest daily Vivid ISO (Thu Feb
5), Ubiquity incorrectly concludes that a blank drive contains an
existing BIOS-mode install (see error in attached screenshot).

The resulting error dialog is also broken: none of the buttons do any
thing when clicked: X (close button), "Go Back", "Continue".

You can seemingly move the install forward by clicking "Continue" in the
main installer window, but things are still broken somewhere as grub
isn't getting correctly installed (system is unbootable after the
install completes).

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: vivid

** Attachment added: "Screenshot from 2015-02-05 12:13:29.png"
   https://bugs.launchpad.net/bugs/1418706/+attachment/4313372/+files/Screenshot%20from%202015-02-05%2012%3A13%3A29.png

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https://bugs.launchpad.net/bugs/1418706

Title:
  Vivid: UEFI: blank drive incorrectly detected as existing BIOS-mode
  install

Status in ubiquity package in Ubuntu:
  New

Bug description:
  When doing a UEFI-mode install using the latest daily Vivid ISO (Thu
  Feb 5), Ubiquity incorrectly concludes that a blank drive contains an
  existing BIOS-mode install (see error in attached screenshot).

  The resulting error dialog is also broken: none of the buttons do any
  thing when clicked: X (close button), "Go Back", "Continue".

  You can seemingly move the install forward by clicking "Continue" in
  the main installer window, but things are still broken somewhere as
  grub isn't getting correctly installed (system is unbootable after the
  install completes).

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