[Bug 1228737] Re: Ubiquity does not recommend to use 64-bit disk when ESP exists

[YannUbuntu]

> when booted in legacy (BIOS) mode there is no way to detect if machine
is in fact UEFI capable.

I know that, but I am giving you:
- a way to detect a case where there are very high chances that the install is UEFI.
- a way to warn the user (and still giving him choice in case the boot is in fact Legacy) thus avoid many failed Ubuntu installs.

> Please don't fork bugs without context.

This bug is not duplicate of "Ubuntu i386 images are not compatible with
32-bit UEFI computers. ", because it affects 64-bit computers.

> Also note that for 13.10 release we are planning to promote 64-bit
images by default.

Hopefully !  that decreases chances to see this bug, but that does not
fix it.

** This bug is no longer a duplicate of bug 1025555
   Ubuntu i386 images are not compatible with 32-bit UEFI computers

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https://bugs.launchpad.net/bugs/1228737

Title:
  Ubiquity does not recommend to use 64-bit disk when ESP exists

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  if :
  1) there is an ESP on the disk (eg preinstalled Win8), 
  2) and the CPU is 64-bit compatible, 
  3) and if the install disk is 32bit. 

  then currently, the Ubuntu installer will install Ubuntu-32bit in Legacy mode. (reminder: current Ubuntu-32bit cannot boot in UEFI mode)
  However, the computer will very probably be using UEFI boot (at least for all preinstalled Win8 computers). Result: Ubuntu will not boot.

  Fix proposal:
  when detecting the 1-2-3 conditions, the installer (Ubiquity) should strongly recommend the user to use a 64-bit install disk.

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