[Bug 1815002] Re: quick-boot-lvm.patch caused regression - menu always appear if root is on Btrfs

[Felipe Castillo]

@Steve Thanks so much for your post. Based on this, would you recommend
having a different partition just for boot, which would be a non-LVM
partition? If this is the preferred way, how big should I make it? I've
heard recommendations of 150MB, others say 250MB.

Also, should I repurpose my EFI partition and convert it into a /boot
one (given that EFI is inside /boot)? Or do I still need both
partitions? Does /boot have any special requirements? I know that the
EFI partition had to be at the beginning of the disk and has to be
FAT32, is the same true for /boot.

The reason why I still think this is a bug, it's because the default
installation of Ubuntu 18.10 and 18.04, when selecting to use LVM, is
not to create a /boot partition, but rather just an EFI one. So
everybody using LVM is going to see this 30 seconds delay.

Instead of trying to fix the patch that introduced the problem. We
should fix the default partitioning when using LVM on Ubuntu, maybe this
bug should focus on that, so we don't see this problem on Ubuntu 19.04

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1815002

Title:
  quick-boot-lvm.patch caused regression - menu always appear if root is
  on Btrfs

Status in grub2 package in Ubuntu:
  Opinion

Bug description:
  Comments about this regression:

  https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1800722/comments/12
  https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1800722/comments/13

  In my case menu starting to always appear on various devices from
  small tablets to workstations. First time it happened with laptop
  https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/736743/comments/95
  and since then more devices became affected. I not 100% sure, but
  seems like at least one unsuccessfully boot is required to reproduce
  this issue, but maybe I am mistake here and issue starting to happen
  for all Btrfs users.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1815002/+subscriptions