[Bug 1231759] Re: Ubuntu32bit generally cannot work on 64bit UEFI computers so Ubiquity32bit should warn the user when EFI can be detected

[YannUbuntu]

*** This bug is a duplicate of bug 1228737 ***
    https://bugs.launchpad.net/bugs/1228737

** Summary changed:

- Ubuntu32bit generally cannot work on 64bit UEFI computers
+ Ubuntu32bit generally cannot work on 64bit UEFI computers so Ubiquity32bit should warn the user when EFI can be detected

** This bug has been marked a duplicate of bug 1228737
   Ubiquity does not recommend to use 64-bit disk when ESP exists

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https://bugs.launchpad.net/bugs/1231759

Title:
  Ubuntu32bit generally cannot work on 64bit UEFI computers so
  Ubiquity32bit should warn the user when EFI can be detected

Status in Ubuntu Website Product:
  Fix Released
Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  ALL THIS BUG DESCRIPTION CONCERNS ONLY 64bit UEFI COMPUTERS
   (= most of Windows8 computers, so sadly most of recent computers)

  we have 2 big issues:

  1) Ubuntu-32bit ISOs cannot boot in UEFI mode (bug #1025555 ), so
  Ubuntu32bit will always be installed in Legacy (non-UEFI) mode. Thus,
  Ubuntu32bit cannot boot after installing it, except if we install an
  UEFI bootloader such as grub-efi.

  2) According to comment 7 of Bug #1020446 , 64-bit UEFI firmwares
  generally will only load a 64 bit boot loader. This is a limitation of
  the firmware.

  So in most cases, installing Ubuntu-32bit fails, and there is no way to make it work !!!
  (except if we turn the firmware in Legacy mode, but in this case Windows8 won't boot any more...)

  
  I let Ubuntu devs find a solution, but I'd suggest that the installer (Ubiquity) of 32bit ISOs should strongly recommend to install a 64bit ISO instead. (AND ubuntu download page should propose 64bit by default.)

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