I'm on Rpi-4 and the OS is DietPi.
I have modified /boot/cmdline.txt using the following parameters to disable all and every boot-time logs:

console=tty3 root=PARTUUID=907af7d0-02 rootfstype=ext4
elevator=deadline fsck.repair=yes rootwait net.ifnames=0
logo.nologo consoleblank=0 loglevel=1 quiet vt.global_cursor_default=0 fastboot

It has worked and most of the logs are vanished but the following logs are still visible:

enter image description here


This is bootloader's log obviously. You can edit its config file using:
sudo -E rpi-eeprom-config --edit
and add DISABLE_HDMI=1 to disable the HDMI boot diagnostics display.
Rpi official link

  • Looks like you are using NOOBS. – Milliways Jun 14 at 22:45
  • @Milliways Oh I should have mentioned that. It is DietPi in fact. – A_Kz Jun 15 at 7:36
  • those are boot messages, not boot logs ... logs are stored in a file – jsotola Jun 16 at 1:06

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