How do I disable boot messages

I need disable boot messages like this thread:

but u-boot seems no longer exist on the Xavier. How can I do it on Xavier?

Could you try to set this field in tegra194-mb1-soft-fuses-l4t.cfg?

Verbosity = 4; # 0: Disabled: 1: Critical, 2: Error, 3: Warn, 4: Info, 5: Debug

Where can I find tegra194-mb1-soft-fuses-l4t.cfg?

If you’ve flashed, then JetPack/SDK Manager has downloaded the driver package. This will produce:


This in turn might be copied to:


However, note that the Xavier is a t186, but often different Tegra devices share or inherit from other Tegra devices. I don’t know if the t194 is correct, but it might be.

I using


Verbosity = 0; # 0: Disabled: 1: Critical, 2: Error, 3: Warn, 4: Info, 5: Debug

in Linux_for_Tegra/bootloader/t186ref/BCT/tegra194-mb1-soft-fuses-l4t.cfg

then run

But boot messages didn’t disabled.

Both Linux_for_Tegra/bootloader/t186ref/BCT/tegra194-mb1-soft-fuses-l4t.cfg and
Linux_for_Tegra/bootloader/tegra194-mb1-soft-fuses-l4t.cfg are set.

I run

sudo ./ jetson-xavier mmcblk0p1

after set Verbosity = 0;
It also no effect about boot messages.