[Bug 1970069] Re: Annoying boot messages interfering with splash screen

[Daniel van Vugt]

It seems unlikely my all-in-one kernel fix will be accepted upstream.
While I could propose it as an Ubuntu patch, another alternative is to
just let the linux task track bug 2049390 (Fix Committed). Then most
people will only need the above Plymouth patch to get a complete fix.

The remaining tasks beyond that are:

initramfs-tools: Required to keep the initrd size under control after
the Plymouth fix is released.

systemd: Would still be nice to implement a redundant fix to suppress
the "clean" message. That would fix bug 1914409 and when combined with
loglevel=3, would also prevent this bug 1970069.

** Changed in: linux (Ubuntu)
       Status: In Progress => Fix Committed

** Changed in: linux (Ubuntu)
     Assignee: Daniel van Vugt (vanvugt) => (unassigned)

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https://bugs.launchpad.net/bugs/1970069

Title:
  Annoying boot messages interfering with splash screen

Status in initramfs-tools package in Ubuntu:
  In Progress
Status in linux package in Ubuntu:
  Fix Committed
Status in plymouth package in Ubuntu:
  In Progress
Status in systemd package in Ubuntu:
  In Progress

Bug description:
  [ 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.

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