[Bug 1668148] Re: Warning message when installing in EFI mode to a BIOS disk is horribly confusing

[Mathieu Trudel-Lapierre]

That's not the point; the system is also warning you that proceeding
with the install is potentially breaking your setup if there is a pre-
existing partition.

In the past Steve McIntyre changed the code to avoid having this message
show up when dealing with a blank disk; plus further updates fixed
false-positive issues. We're sufficiently up to date with Debian w.r.t
partman-efi already. I think more than changing the text, we need to fix
the logic to make absolutely sure it doesn't trigger on blank disks.

As for non-blank disks, perhaps it would be best to fail to install in
that case -- the system will surely not boot in UEFI mode, and other
bits will fail (such as installing grub-efi).

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https://bugs.launchpad.net/bugs/1668148

Title:
  Warning message when installing in EFI mode to a BIOS disk is horribly
  confusing

Status in partman-efi package in Ubuntu:
  Triaged
Status in partman-efi source package in Artful:
  Triaged

Bug description:
  When installing in EFI mode to a disk that is partitioned without an
  EFI system partition, you do get a warning message that this may cause
  a problem and suggests that you go back and do a bios mode install
  instead.  The way that it is worded, and the fact that the button to
  switch to a BIOS mode install is labeled "cancel", is very confusing
  and has lead to hundreds, if not thousands of users clicking the OK
  button instead, and proceeding with an install that is doomed to fail.
  This message really needs to be clarified.

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