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[GH-ISSUE #33] Auto-generated splash screen with a QR code that goes to the management interface with the hostname #33

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opened 2026-03-03 11:13:32 +03:00 by kerem · 9 comments

kerem commented

2026-03-03 11:13:32 +03:00

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Originally created by @andiohn on GitHub (Oct 2, 2024).
Original GitHub issue: https://github.com/debloper/xiosk/issues/33

Theoretically this should be easy because we could simply replace the splash from plymouth with this new generated one. Do it once on install, and you could even prompt in the installer script for a 'support link' and if it has a valid web address, put that side by side.

Piosk is booting, please wait.

To manage the configuration: If this screen is displayed for longer than 20 minutes, please contact support here:
QR QR

http://www.linux-magazine.com/Online/Features/Generating-QR-Codes-in-Linux
https://forum.puppylinux.com/viewtopic.php?t=9961

Originally created by @andiohn on GitHub (Oct 2, 2024). Original GitHub issue: https://github.com/debloper/xiosk/issues/33 Theoretically this should be easy because we could simply replace the splash from plymouth with this new generated one. Do it once on install, and you could even prompt in the installer script for a 'support link' and if it has a valid web address, put that side by side. Piosk is booting, please wait. To manage the configuration: If this screen is displayed for longer than 20 minutes, please contact support here: QR QR http://www.linux-magazine.com/Online/Features/Generating-QR-Codes-in-Linux https://forum.puppylinux.com/viewtopic.php?t=9961

kerem

2026-03-03 11:13:32 +03:00

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kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

Splash screen is located here:
/usr/share/plymouth/themes/pix/splash.png

So replacing it with another one is trivial.

@andiohn commented on GitHub (Oct 2, 2024): Splash screen is located here: /usr/share/plymouth/themes/pix/splash.png So replacing it with another one is trivial.

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

Then to rebuild it so it shows:
sudo plymouth-set-default-theme --rebuild-initrd pix

@andiohn commented on GitHub (Oct 2, 2024): Then to rebuild it so it shows: sudo plymouth-set-default-theme --rebuild-initrd pix

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

Also, rpi-update would apply it too.

@andiohn commented on GitHub (Oct 2, 2024): Also, rpi-update would apply it too.

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

Also I followed some of this to make the boot up look better:
https://scribles.net/customizing-boot-up-screen-on-raspberry-pi/#:~:text=Remove%20text%20message%20under%20splash,script%E2%80%9D%20as%20root.&text=Then%2C%20remove%20(or%20comment%20out,message_sprite%20%3D%20Sprite()%3B%20message_sprite.

I didn't do the message sprite though, that's useful.

@andiohn commented on GitHub (Oct 2, 2024): Also I followed some of this to make the boot up look better: https://scribles.net/customizing-boot-up-screen-on-raspberry-pi/#:~:text=Remove%20text%20message%20under%20splash,script%E2%80%9D%20as%20root.&text=Then%2C%20remove%20(or%20comment%20out,message_sprite%20%3D%20Sprite()%3B%20message_sprite. I didn't do the message sprite though, that's useful.

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

On device QR code generation is this html5 thing too: https://github.com/six-two/qr.html

@andiohn commented on GitHub (Oct 2, 2024): On device QR code generation is this html5 thing too: https://github.com/six-two/qr.html

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

Here's a demo of having it pre-filled out. https://qr.15c.me/qr.html#Hello,%20world!%F0%9F%8E%89

@andiohn commented on GitHub (Oct 2, 2024): Here's a demo of having it pre-filled out. https://qr.15c.me/qr.html#Hello,%20world!%F0%9F%8E%89

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 2, 2024):

@andiohn commented on GitHub (Oct 2, 2024): ![image](https://github.com/user-attachments/assets/45947d48-6cf0-4c29-88c0-ad7e582a8f83)

kerem commented

2026-03-03 11:13:33 +03:00

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@debloper commented on GitHub (Oct 7, 2024):

Theoretically this should be easy

Level of difficulty is almost never the main holdback. The tradeoff between utility & side effects are.

This is a security nightmare. As the dashboard doesn't have authentication, any bystander can scan the QR code while it's booting/rebooting, visit the dashboard & CRUD the page list to show whatever they want to.

The users are absolutely free to create a QR code splash screen like this:

cd /usr/share/plymouth/themes/pix/
sudo mv splash.png splash.png.bak
qrencode "http://$(hostname)/" -o splash.png

(or follow the guides you've linked) at their own personal discretion, acknowledging the risk.

@debloper commented on GitHub (Oct 7, 2024): > Theoretically this should be easy Level of difficulty is almost never the main holdback. The tradeoff between utility & side effects are. This is a security nightmare. As the dashboard doesn't have authentication, any bystander can scan the QR code while it's booting/rebooting, visit the dashboard & CRUD the page list to show whatever they want to. The users are absolutely free to create a QR code splash screen like this: ```bash cd /usr/share/plymouth/themes/pix/ sudo mv splash.png splash.png.bak qrencode "http://$(hostname)/" -o splash.png ``` (or follow the guides you've linked) at their own personal discretion, acknowledging the risk.

kerem commented

2026-03-03 11:13:33 +03:00

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@andiohn commented on GitHub (Oct 9, 2024):

For sure, good point!

@andiohn commented on GitHub (Oct 9, 2024): For sure, good point!