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

[dann frazier]

@mahmoh - do you know if GRUB is the only blocker here? That is, does an
Ubuntu kernel otherwise support any of these platforms?

Ubuntu does provide a -snapdragon kernel but, AFAIK, that is only
installable via Ubuntu Core for the DragonBoard 410c. The Ubuntu
(Server) installer uses the -generic kernel. Is there enough support in
the -generic kernel to make Ubuntu usable on the Envy x2?

I'm certainly not opposed to adding this support to GRUB either way -
I'm just curious if doing so will unblock you or just get you to the
next step.

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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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