debian - Automatic system install from bootable USB

Question

I have a clean, new machine with a new Debian system on an eMMC memory. Moreover, I have a bootable USB with a custom Debian OS. I want to produce a procedure that installs this OS on the machine just inserting the USB in the RPi and powering on.

Keep in mind that my procedure needs to work without a display of any kind and without any human interaction apart from USB insert and power on and final power off at procedure end.

I have an idea on how to copy the whole OS on the flash drive via the dd command (even if I would appreciate a suggestion to skip the copy of those bytes not corresponding system data, let's say the "empty bytes"). What I do not know is how to launch the procedure automatically, at startup, and how to notify to the user that the procedure is terminated (I can use a LED on the machine).

Any idea how to do this? Thanks in advance.

Ps: ask for more details.

question from:https://stackoverflow.com/questions/65919815/automatic-system-install-from-bootable-usb

Answer 1

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