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

[Phillip Susi]

So from what I can see, the underlying error message from partman-efi
happens any time there is NOT an existing EFI system partition on the
disk you are installing to, and ubiquity is broken because it displays
the error message and waits a few seconds, then proceeds to the next
screen, and if you didn't answer the message in that time, after it has
moved to the next screen, the window displaying the message becomes
broken and you no longer can click either to proceed or go back.
partman-efi seems to be displaying the message because it asks parted to
format an ext2 partition on the disk, which will later be formatted as
fat32 and become an efi system partition, but at the time that partman-
efi/init.d/efi runs, parted still reports the partition as ext2, so the
script counts it as an existing non EFI system partition, and throws the
warning.


So the bug appears to be in two places: both partman-efi should not be throwing the warning, and ubiquity fscks up when the warning is thrown.


** Also affects: partman-efi (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: partman-efi (Ubuntu)
       Status: New => Triaged

** Changed in: ubiquity (Ubuntu)
       Status: New => Triaged

** Changed in: partman-efi (Ubuntu)
   Importance: Undecided => High

** Changed in: ubiquity (Ubuntu)
   Importance: Undecided => High

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

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

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

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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