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machine-id change on hibernate (feddit.cl)

submitted 1 week ago by lambisio@feddit.cl to c/linuxquestions@lemmy.zip

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I've been researching information about /etc/machine-id, a file that contains an ever-persistent machine ID that identifies the install across hardware or netwotk changes, and that is world-readable.

Most documentation I've seen says it is mostly safe to change this file and generate a new ID on shutdown, and there are example scripts to do it via eg.: systemd or rc.shutdown . That's nice, but... we're on Linux, we don't "shutdown" our machines, what do they think we are, Windows users? We don't shutdown at least intentionally.

So, I was wondering, is it feasible to regenerate this ID on hibernate? It's another instance where the machine powers down, there are ACPI hooks to run scripts on hibernate/wakeup, and I feel at least for a laptop it's a more common use case than a shutdown.

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[–] HelloRoot@lemy.lol 0 points 6 days ago* (last edited 6 days ago)

KDE activities don't get much dev love, so be warned.

The activity script hooks are (or were for a long time, idk how it is now) an undocumented feature.

I'll dig all the stuff out for you later today.