[Bug 1970069] [NEW] Annoying boot messages interfering with splash screen

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Daniel van Vugt (vanvugt):

[ Impact ]

Kernel (and systemd) log messages appear during boot for many machines,
when the user should be seeing only the BIOS logo and/or Plymouth splash
screens.

[ Workaround ]

On most machines you can hide the problem by using these kernel parameters together:
  quiet splash loglevel=3 fastboot

[ Original Description ]

Since upgrading from 20.04.6 Desktop to 22.04, the boot screen is not as
clean as it used to be.

Basically, the flow used to be in 20.04:

GRUB > Splash screen > Login prompt

Currently in 22.04:

GRUB > Splash screen > Messages (in the attached file) > Splash screen
again for a sec > Login prompt

All of those messages already existed in 20.04, the difference is that
they were not appearing during boot.

I was able to get rid of the "usb" related messages by just adding
"loglevel=0" in GRUB. Currently is "quiet loglevel=0 splash".

Regarding the fsck related message, I can get rid of them by adding
"fsck.mode=skip".

However, I do not want to just disable fsck or set the loglevel to 0.
This is not a sustainable solution.

Something definitely changed here. These messages are not of enough
relevance to be shown at boot by default, and they should remain hidden
like they were in Focal.

Obviously a minor issue, but important to the whole look and feel of the
OS for desktop.

** Affects: initramfs-tools (Ubuntu)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Committed

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Fix Committed

** Affects: plymouth (Ubuntu)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: In Progress

** Affects: systemd (Ubuntu)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: In Progress


** Tags: flickerfreeboot focal iso-testing jammy mantic noble patch regression-release udeng-2004 visual-quality
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Annoying boot messages interfering with splash screen
https://bugs.launchpad.net/bugs/1970069
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