Add documentation to README for changing Splash Screen

[tmello01]

In the README for this project, it is stated as a feature that you are able to "Specify a custom Splashscreen that gets displayed on booting process instead of Kernel messages/text", but there is no documentation on how to do this in the README or the Wiki for this project. Can we add these steps somewhere?

[guysoft]

You are quite right. That was part of PR #317 done by @mschmidt291

It can be changed by editing the file /boot/splash.png.

@mschmidt291 are there any constraints on the file? It might be worth adding a note in the README and redirecting people to the wiki with a guide

[mschmidt291]

@tmello01 Yes, just replace /boot/splash.png. But for this to work, you have to build fullpageOS yourself, since the releases in this repo don't have my commit included yet.

@guysoft any plans on releasing a new version with included Splashscreen? I then can add documentation to the README, but I think the majority of people is using your pre-built images, instead of compiling it.

//edit: Ahh, nightly build already contains my PR. So you can use the nightly build and then replace /boot/splash.png with your preferred Splashscreen image @tmello01 :)

[guysoft]

@mschmidt291 Hey, I do have plans. The RaspberryPi Foundation just released a new Pi and renamed Raspbian to Raspberry Pi OS, and changed all the link names. I want to get that working and tested, then we can release.

[nabheet]

Splash screen is not showing up on my RPi Zero W.

I added my image to both /boot/splash.png and /home/pi/media/splash.png from https://github.com/guysoft/FullPageOS/pull/317/files#diff-651e9d987beed945f3e80b5f4d3462a949e3074bf6b70383c6a19e21b9696d7cR31.

not sure what else to try.

EDIT: I think it might be trying to display something but the screen is black for a bit. This "bit" might be same amount of time as a splash screen. I assume the file needs to be a PNG. which I converted from a JPEG using convert command from imagemgick.

[guysoft]

@nabheet RPi Zero W is not supported. https://github.com/guysoft/FullPageOS?tab=readme-ov-file#requirements

[RomanSmolka]

The following now works:

• Put the image into /boot/firmware/splash.png – this is for the bootloader
• Change line 5 in ~/scripts/run_onepageos from feh --bg-center /opt/custompios/background.png to feh --bg-center /boot/firmware/splash.png – this is for the startup script