[Bug 2076902] Re: Plymouth costs an extra 2 minutes of boot time

[Daniel van Vugt]

Thanks for the bug report.

Please try these separately in /etc/default/grub:

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash fsck.mode=skip"

or

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash fastboot"

then:

  sudo update-grub

and reboot. Do either or both fix the problem?  My theory (originating
from bug 1970069) is that Plymouth waits for filesystem checks so it can
render status messages on screen. And part of that is a custom systemd
patch only used by Ubuntu.

** Changed in: plymouth (Ubuntu)
       Status: New => Incomplete

** Tags added: performance

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Title:
  Plymouth costs an extra 2 minutes of boot time

Status in plymouth package in Ubuntu:
  Incomplete

Bug description:
  Plymouth costs 2 minutes of additional time according to systemd-
  analyze for me. And while I am indeed running Ubuntu on my 10-year-old
  HDD, it does seem to have an impact anyways, the impact just
  increases/decreases depending on your hardware.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: plymouth 0.9.5+git20211018-1ubuntu3
  ProcVersionSignature: Ubuntu 6.5.0-45.45~22.04.1-generic 6.5.13
  Uname: Linux 6.5.0-45-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.6
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Aug 13 14:08:36 2024
  DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
  InstallationDate: Installed on 2024-08-12 (0 days ago)
  InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. Q470C/500P4C
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-45-generic root=UUID=6b53138b-f689-4542-98ba-00e767f472ac ro quiet splash vt.handoff=7
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-45-generic root=UUID=6b53138b-f689-4542-98ba-00e767f472ac ro quiet splash vt.handoff=7
  SourcePackage: plymouth
  TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/01/2013
  dmi.bios.release: 0.1
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P08RAB
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP500P4C-S06AE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP08RAB:bd11/01/2013:br0.1:svnSAMSUNGELECTRONICSCO.,LTD.:pnQ470C/500P4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP500P4C-S06AE:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:skuSystemSKUNumber:
  dmi.product.family: ChiefRiver System
  dmi.product.name: Q470C/500P4C
  dmi.product.sku: System SKUNumber
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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