So far I was used to the Grub (and lilo) boot manager(s) but the Armbian 5.31 Bananapi Debian jessie next 4.11.5 image does some things differently. I have found the file /boot/armbianEnv.txt but none of the websites I found described what I should do with it. I tried to copy it to /etc but the changes did not take effect. I would like to remove the logo and have verbose boot messages. Could somebody help me to get there, please?

There is no GRUB on ARM boards.

 

/boot/armbianEnv.txt

Change those two parameters and reboot:

 

verbosity=9
console=display

2 minutes ago, Igor said:

There is no GRUB on ARM boards.

AFAIK it may be possible to load UEFI GRUB bro u-boot, but it would probably need some work to make a working configuration for it.

 

8 minutes ago, Patrick Frank said:

I have found the file /boot/armbianEnv.txt but none of the websites I found described what I should do with it.

You can check /boot/boot.cmd to check what it does exactly.

To remove the logo, simply delete the file /boot/boot.bmp