Note: This guide only works with the Debian Trixie (and perhaps later) images.

0. Install a Plymouth theme (you can search for it in your favorite search engine), and follow these steps:

1. Set the theme:

bash

sudo plymouth-set-default-theme [theme-name]

2. Rebuild the initramfs:

bash

sudo update-initramfs -u

3. Flash the kernel (if auto flash is disabled; it's not by default):

bash

sudo vtflash

or

bash

sudo vttest

(for one-time boot)

Also, we recommend adding all these options to cmdline (in `/boot`) for best results:

quiet splash plymouth.ignore-serial-consoles loglevel=0