[Bug 2078307] Re: Grub 2.12 in Oracular is unable to boot Windows using chainloader

[haobinnan]

Do you mean that if the shim does not enforce the NX flag, then Ubuntu
GRUB2 will not check the NX flag of Windows? Unless the shim enforces
the NX flag, GRUB2 will only check the Windows NX flag if the shim
enables the NX flag?

Or, when applying the Ubuntu patches to GRUB2, is it possible to avoid
using the patches in the NX directory? Alternatively, is there any
additional switch during the GRUB2 compilation to avoid checking the NX
flag?

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https://bugs.launchpad.net/bugs/2078307

Title:
  Grub 2.12 in Oracular is unable to boot Windows using chainloader

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  I am using Shim 15.8 in combination with GRUB2.12. One of the GRUB
  menu items, chainloader /efi/Microsoft/Boot/bootmgfw.efi, fails to
  boot, while it works correctly with GRUB2.06. Below is a screenshot of
  the error.

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