[Bug 1898430] [NEW] GRUB2 - menu on every boot & 10 second delay

[Tichun]

Public bug reported:

GRUB2 appears by default on every reboot, which is a problem. Neither Windows, nor any other mainstream OS except for Ubuntu shows a boot menu on every boot. It is meant to be displayed when there is a problem, furthermore, systems with UEFI have no need for a bootloader, so I propose to replace grub with systemd-boot for systems with UEFI by default.
Second, the GRUB2 menu that appears on every boot has a 10 second delay. Why 10s not 5s, 2s? On every boot?
It doesn't make sense to require user input during boot stages of a system, so this 10 second delay is actually increasing boot time of the system by 10 seconds, that's over twice as long as the whole operating systems boot these days. Boot experience is degraded severely with the current state of bootloading on Ubuntu.

Description:    Ubuntu 20.04.1 LTS

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  GRUB2 - menu on every boot & 10 second delay

Status in grub2 package in Ubuntu:
  New

Bug description:
  GRUB2 appears by default on every reboot, which is a problem. Neither Windows, nor any other mainstream OS except for Ubuntu shows a boot menu on every boot. It is meant to be displayed when there is a problem, furthermore, systems with UEFI have no need for a bootloader, so I propose to replace grub with systemd-boot for systems with UEFI by default.
  Second, the GRUB2 menu that appears on every boot has a 10 second delay. Why 10s not 5s, 2s? On every boot?
  It doesn't make sense to require user input during boot stages of a system, so this 10 second delay is actually increasing boot time of the system by 10 seconds, that's over twice as long as the whole operating systems boot these days. Boot experience is degraded severely with the current state of bootloading on Ubuntu.

  Description:    Ubuntu 20.04.1 LTS

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