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

[dann frazier]

On Fri, Feb 1, 2019 at 7:40 PM mahmoh <1812317 at bugs.launchpad.net> wrote:
>
> @dannf it appears the patches have may now have been finally approved?:
>
>   https://www.mail-archive.com/grub-devel@gnu.org/msg28322.html

Yep! Though, I'm going to wait until they are actually merged. It is
too late to make 18.04.2, and we still have a lot of time before
18.04.3 and 19.04.

> The tester reports that the stock Debian Buster installer works out of
> the box on this device?! If so, it would be nice if Ubuntu could just
> pick up the patch set that makes the kernel just work.

Kernel support is a different question - if you know what patches are
required for that, please open a bug against the kernel w/ that info.

  -dann

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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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