[Bug 1863940] [NEW] Grub script should warn about EFI 32 bit system instead of exit silently

[Bruno Duyé]

Public bug reported:

Hi,

I'm trying to add memtest to my Grub config, and searched a while. Many questions about this "problem" are posted on stack exchange but I didn't quickly found the solution. So I stated to trace and finally found the origin of my problem: I was trying to install FOSS Memtest86 version on a Grub that is launched on EFI mode. 
But to find this problem I had to add debug on /etc/grub.d/20_memtest86+ and I here's what really miss there, IMHO:

diff --git debian/grub debian/grub
index 56ca510..11afbe5 100644
--- debian/grub
+++ debian/grub
@@ -15,6 +15,7 @@ fi
 
 # We need 16-bit boot, which isn't available on EFI.
 if [ -d /sys/firmware/efi ]; then
+  echo "Memtest86+ needs a 16-bit boot, that is not available on EFI, exiting." >&2
   exit 0
 fi

(by the way I don't understood how to submit a PR; why Ubuntu isn't
using Gitlab ?!!; so here's the "patch"; super simple so can be put
here)

Thanks

** Affects: memtest86+ (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1863940

Title:
  Grub script should warn about EFI 32 bit system instead of exit
  silently

Status in memtest86+ package in Ubuntu:
  New

Bug description:
  Hi,

  I'm trying to add memtest to my Grub config, and searched a while. Many questions about this "problem" are posted on stack exchange but I didn't quickly found the solution. So I stated to trace and finally found the origin of my problem: I was trying to install FOSS Memtest86 version on a Grub that is launched on EFI mode. 
  But to find this problem I had to add debug on /etc/grub.d/20_memtest86+ and I here's what really miss there, IMHO:

  diff --git debian/grub debian/grub
  index 56ca510..11afbe5 100644
  --- debian/grub
  +++ debian/grub
  @@ -15,6 +15,7 @@ fi
   
   # We need 16-bit boot, which isn't available on EFI.
   if [ -d /sys/firmware/efi ]; then
  +  echo "Memtest86+ needs a 16-bit boot, that is not available on EFI, exiting." >&2
     exit 0
   fi

  (by the way I don't understood how to submit a PR; why Ubuntu isn't
  using Gitlab ?!!; so here's the "patch"; super simple so can be put
  here)

  Thanks

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