[Bug 1904076] [NEW] GRUB install should delete active flag on Windows EFI boot entry

[UlfZibis]

Public bug reported:

1. Have Windows 10 installed
2. Install Ubuntu 20.04
3. Start PC, choose Ubuntu in GRUB menu
4. --> Ubuntu is started correctly
5. Restart PC, choose Windows in GRUB menu
4. --> Windows is started correctly
5. Restart PC,
8. --> No GRUB menu, Windows is started immediately

Ubuntu can only be started by manually escaping to the BIOS boot device
menu, because starting Windows has changed the EFI bootorder with
priority to Windows.

Workaround: Manually delete the active flag on the Windows EFI boot
entry with efibootmgr.

So solution could be, that grub-install would delete this flag.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1904076

Title:
  GRUB install should delete active flag on Windows EFI boot entry

Status in grub2 package in Ubuntu:
  New

Bug description:
  1. Have Windows 10 installed
  2. Install Ubuntu 20.04
  3. Start PC, choose Ubuntu in GRUB menu
  4. --> Ubuntu is started correctly
  5. Restart PC, choose Windows in GRUB menu
  4. --> Windows is started correctly
  5. Restart PC,
  8. --> No GRUB menu, Windows is started immediately

  Ubuntu can only be started by manually escaping to the BIOS boot
  device menu, because starting Windows has changed the EFI bootorder
  with priority to Windows.

  Workaround: Manually delete the active flag on the Windows EFI boot
  entry with efibootmgr.

  So solution could be, that grub-install would delete this flag.

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https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1904076/+subscriptions