Do you not have the "quiet" boot parameter set? What messages are you seeing before Plymouth?
In fedora 41 workstation I have a custom grub and Plymouth theme and don't see any text from kernel boot during the boot process unless I hit esc while Plymouth is on screen.
Ok, so you wrote the hass os image to your internal SSD using kubuntu booted from a flash drive. Then when you booted hass os from the SSD you're getting networking errors not being able to download the docker image from ghcr.io.
Can you visit ghcr.io from other devices on your network?
Can you ping ghcr.io from the hass os installation?
Do you not have the "quiet" boot parameter set? What messages are you seeing before Plymouth?
In fedora 41 workstation I have a custom grub and Plymouth theme and don't see any text from kernel boot during the boot process unless I hit esc while Plymouth is on screen.