[Bug 1812317] Re: grub is prevented from booting on UEFI Arm64 Laptops - requires 4k aligned headers

[mahmoh]

@dannf it's the first of two I believe. This will allow any kernel to
boot but then we hit other problems booting stock kernels. The
-snapdrogon kernel is for 410E vs. 835/850.

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https://bugs.launchpad.net/bugs/1812317

Title:
  grub is prevented from booting on UEFI Arm64 Laptops - requires 4k
  aligned headers

Status in grub2 package in Ubuntu:
  Triaged
Status in grub2 source package in Bionic:
  Triaged
Status in grub2 source package in Cosmic:
  Triaged
Status in grub2 source package in Disco:
  Triaged

Bug description:
  [Impact]
  Ubuntu is not bootable on various arm64 laptops (HP Envy x2, Asus NovaGo, Lenovo Miix 630 and maybe the Lenovo Yoga C630) because GRUB fails to boot. The reason is that their firmware tries to ensure NX protection flags which it can only do when the code is 4K aligned.

  [Test Case]
  Install and boot Ubuntu on one of the above arm64 laptops.

  [Fix]
  (pending upstream)

  [Regression Risk]

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