Single Board Computers

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A community for the discussion of all single board computers. Raspberry Pi is ok, but there are so many other boards now that get looked over that deserve attention.

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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 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 15 points 1 week ago

Probably just run passwd to set a password for the default user and/or root?

[–] [email protected] 5 points 1 week ago

Idk much ablout Mendel Linux. Is there a [email protected] 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 2 points 1 week ago

Try this.

auto login

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