Single Board Computers

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minnix@lemux.minnix.dev

Does anyone know how to prevent a single board computer from always displaying a logged in terminal through the onboard HDMI port on boot? (lemmy.ml)

submitted 6 months ago* (last edited 6 months ago) by HiddenLayer555@lemmy.ml to c/sbcs@lemux.minnix.dev

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I have a Tinker Edge T as a server, and it's running Mendel Linux which is a default debian-based OS recommended by the manufacturer. One thing I really don't like is the fact that if you plug in an HDMI cable and USB keyword, it will always give you access to a terminal as the default user with no authentication prompt or anything else, and it doesn't even need a password to become root either. Is there a general Linux way to set a password for the GUI like you can on regular desktop Linux, or otherwise require authentication before you get a terminal or any other functionality, so someone can't just plug an HDMI cable and keyboard into the device and have root access to the entire device?

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[–] hendrik@palaver.p3x.de 5 points 6 months ago

Idk much ablout Mendel Linux. Is there a getty@tty1.service service running in systemd? You could disable or edit that. Or take a look at /etc/default/grub see if they added something to the kernel cmdline.

[–] duffer@lemmy.world 2 points 6 months ago

Try this.

auto login

I searched on how to disable auto login without a desktop manager.