[Bug 1839317] Re: Grub fails to chainload the Windows Boot Manager on aarch64 laptops

[Ivan Larionov]

I'm testing the fix for a similar amd64 bug 1845289 but I have a feeling
it may also help on arm64. Feel free to test it https://launchpad.net
/~xeron-oskom/+archive/ubuntu/grub2.

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https://bugs.launchpad.net/bugs/1839317

Title:
  Grub fails to chainload the Windows Boot Manager on aarch64 laptops

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  After an update to 2.04 Grub fails to chainload into Windows.

  When selecting the menu item to boot into the Windows Boot Manager,
  the menu flashes and returns.

  When trying to chainload/boot via the Grub command line, nothing
  happens and the prompt reappears.

  When using the same commands in an earlier version (on a bootable USB
  stick) Windows sparks into life.

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