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

[Caitlyn Martin]

The problem still exists in Yakkety.  I am doing an install on an HP x2
Detachable 10-p010nr (the latest version).  I attempted to basically
wipe the SSD and do a custom install so that I could have multiple
partitions.  I got stuck at Force UEFI installation? and couldn't go
back or continue.  Please note that I am using the Ubuntu GNOME iso with
the patched kernel for Intel Cherry Trail SOCs at:
https://linuxiumcomau.blogspot.com/2016/10/running-ubuntu-on-intel-bay-
trail-and.html  I realize this is not an officially supported OS image.

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

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

Status in partman-auto package in Ubuntu:
  Triaged
Status in partman-efi package in Ubuntu:
  Triaged
Status in ubiquity package in Ubuntu:
  Triaged
Status in partman-auto package in Debian:
  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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