What are these messages that appear at the beginning of system startup?

[aaoaa]

This error appeared after applying this

Guide how to install and use plymouth

Hello there! I hope it’s okay to post guide made by newbie for newbies But here it is! Small guide how to setup plymouth in EOS. I’m nvidia user and don’t know how do it using amd gpu First of all small plan: Download plymouth Change configs for dracut* Enable splash in boot options Customize plymouth Rebuild initramfs using dracut* Downloading plymouth First of all: download. Open terminal and run yay plymouth Select package: if you’re using KD…