Boot time text messges

[Pbowen]

I would like to be able to see the text messages during u-boot initialization and OS boot. There is a section in the wiki about it, but I expect it's outdated. Here is what it says;

<snip>
By default most Linux distros have a boot screen with a picture. To see all the messages, use the following;  

• Backup and edit the U-Boot configuration file:
  

       cp -p /etc/default/u-boot /etc/default/u-boot.`date +%Y%m%d`    
       chmod a-w /etc/default/u-boot.`date +%Y%m%d`
      vi /etc/default/u-boot

Remove the quiet and splash parameters. Leave everything else alone.

• Update the U-Boot configuration:
  

       u-boot-update
</snip>

On my fresh-from-the-factory Pinebook Pro I received in the last week of May 2020 there is no u-boot file in /etc/default and no u-boot-update.

So, how do I go about enabling boot time messages?

Thanks,
Patrick