How to turn off the filesystem check message which occures while booting

Question

What I want to achieve:

I want to customize my complete boot of my Ubuntu 16.04 LTS installation to show the same wallpaper which is actually on my desktop.

What I achieved till now:

• added the wallpaper to the grub menu by adding the following lines to /etc/deault/grub and doing an update-grub afterwards.

  export GRUB_MENU_PICTURE="/boot/grub/wallpaper.png"
  export GRUB_COLOR_NORMAL="white/black"
  export GRUB_COLOR_HIGHLIGHT="black/white"
  

• added the wallpaper to the splash-screen and login screen

Problem:

When I boot up the picture is showing while in grub, but then I rarely see the splash screen, instead I get an almost blank screen showing the file-system check like following:

/dev/sda1: clean, 201776/60878736 files, 4991277/243040256 blocks

This prevents me from having the boot experience I want to achieve since after that the splash-screen just shortly popping up after that message.

Question:

How can I remove this message from showing up so I get a seamless booting with my beloved wallpaper, without switching the file-system check completely off (if possible)?

Answer 1

Silencing boot messages

You should be able to achieve this with the kernel parameter loglevel= or quiet

loglevel=       All Kernel Messages with a loglevel smaller than the
                console loglevel will be printed to the console. It can
                also be changed with klogd or other programs. The
                loglevels are defined as follows:

                0 (KERN_EMERG)          system is unusable
                1 (KERN_ALERT)          action must be taken immediately
                2 (KERN_CRIT)           critical conditions
                3 (KERN_ERR)            error conditions
                4 (KERN_WARNING)        warning conditions
                5 (KERN_NOTICE)         normal but significant condition
                6 (KERN_INFO)           informational
                7 (KERN_DEBUG)          debug-level messages


quiet       [KNL] Disable most log messages

I am not sure at exactly what level this would be hidden (or how quiet you would like your boot to be).

Temporarily

reboot your computer, and at the grub menu hit e to edit the boot parameters.

scroll down to the end of the linux... line using the arrow keys

add desired loglevel parameter or quiet to the end of that line. example:

linux      /vmlinuz-4.4.0-21.generic.efi.signed root=/dev/mapper/encrypted ro loglevel=4

or

linux      /vmlinuz-4.4.0-21.generic.efi.signed root=/dev/mapper/encrypted ro quiet

when done editing, proceed to boot by pressing F10

Persistently

To do this, edit /etc/default/grub

edit the line: GRUB_CMDLINE_LINUX_DEFAULT=

uncomment it if needed, and add the desired log level or quiet -- for example GRUB_CMDLINE_LINUX_DEFAULT="loglevel=4" or GRUB_CMDLINE_LINUX_DEFAULT="quiet"

and run sudo update-grub

fsck messages

remove fsck from initramfs

fsck is run by default by the initramfs. by removing it and having systemd run fsck we will be able to redirect the output.

see man initramfs and wiki.ubuntu.com/Initramfs for more info on removing fsck from the ramfs.

systemd fsck

From the arch wiki:

Now copy the files systemd-fsck-root.service and systemd-fsck@.service located at /usr/lib/systemd/system/ to /etc/systemd/system/ and edit them, configuring StandardOutput and StandardError like this:

[Service]

Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/lib/systemd/systemd-fsck
StandardOutput=null
StandardError=journal+console
TimeoutSec=0

In Ubuntu, these files are both located in /lib/systemd/system

If the file system is not checked by the initramfs during boot, systemd-fsck-root.service will automatically be run.

see http://manpages.ubuntu.com/manpages/wily/man8/systemd-fsck@.service.8.html

Answer 2

Removing Checking Disks From 20.04 Boot

Installed system

The command line option fsck.mode=skip can be used to skip the disk check when booting Ubuntu 20.04.

The line Checking disks: 0% complete may still come up but fsck will not be run, nor will boot time be increased.

Add fsck.mode=skip to the linux line in grub.cfg just before quiet splash

It is recommended to add the command to grub.cfg by editing /etc/default/grub thus: GRUB_CMDLINE_LINUX_DEFAULT="fsck.mode=skip quiet splash" and then run sudo update-grub.

I have had this problem with a Live USB but not with an installed system.

Persistent USB's

The command line option fsck.mode=skip can also be used to skip the disk check on persistent USB drives.

The line Checking disks: 0% complete will still come up but fsck will not be run, nor will boot time be increased.

mkusb After the Persistent USB drive is created, open /boot/grub/grub.cfg as root.

• Add fsck.mode=skip to the Persistent menuentry thus:

linux ($root)/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity fsck.mode=skip quiet splash persistent ---

• Newer versions of mkusb already include this fix

UNetbootin After creating the boot drive, open /boot/grub/grub.cfg as root.

• Add fsck.mode=skip to the first menuentry for (UEFI boot mode).

• Open syslinux.cfg as root and add fsck.mode=skip to the default menuentry for (BIOS boot mode).

Rufus After creating the boot drive, open /boot/grub/grub.cfg as root.

• Add fsck.mode=skip to the Default menuentry for (UEFI boot mode).

• Open /isolinux/txt.cfg as root and add fsck.mode=skip to the "Try Ubuntu without installing" menuentry, (for BIOS boot mode).

The Try Ubuntu / Install Ubuntu screen can be removed from BIOS boot by overwriting syslinux.cfg with:

default persistent
label persistent
  say Booting an Ubuntu Persistent session...
  kernel /casper/vmlinuz
  append  file=/cdrom/preseed/ubuntu.seed boot=casper persistent initrd=/casper/initrd quiet splash noprompt --

Answer 3

I too have been experiencing black screen after grub with console logging and a flash of Plymouth splash screen even on a fresh install of 16.04 LTS. Disabling messages is probably not the best thing to do. I Google searched outside of ask Ubuntu and discovered this thread. In comment #18 you'll find the commands that fixed my issue with out disabling messages.

My procedure for implementing the fix went as follows:

1. Open Terminal (You will have to be logged in as root)
2. Type: sudo -i (type your administrator password)
3. Type: echo FRAMEBUFFER=y > /etc/initramfs-tools/conf.d/splash
4. Type: update-initramfs -u
5. Type: exit (to log out as root).
6. Close your terminal and reboot your computer.

Now if Plymouth is working properly, proceed with customizing your boot process. If you have tried many attempts to fix the Plymouth splash screen with terminal commands I suggest a fresh install and start over, you may have caused damage to your file system and not be aware of it.

Answer 4

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash loglevel=3 console=tty3"

console=tty3 moves fsck output to not default console and keep tty1 clean.