3 ms·

Incorrect. Machine IDs are stored in several places, some of which are not even files. * http://jdebp.uk./Softwares/nosh/guide/commands/machine-id.xml#STORAGE

by JdeBP 8y ago

Incorrect. Machine IDs are stored in several places, some of which are not even files. * http://jdebp.uk./Softwares/nosh/guide/commands/machine-id.xml#STORAGE http://jdebp.uk./Softwares/nosh/guide/commands/machine-id.xm... They can be resurrected if not all storage locations are dealt with. Moreover, some systems use things like the SMBIOS product UUID. * http://jdebp.uk./Softwares/nosh/guide/commands/setup-machine-id.xml#FALLBACKS http://jdebp.uk./Softwares/nosh/guide/commands/setup-machine... The correct approach is not deleting files. * http://jdebp.uk./Softwares/nosh/guide/commands/erase-machine-id.xml http://jdebp.uk./Softwares/nosh/guide/commands/erase-machine... * https://lists.debian.org/debian-user/2019/03/msg00550.html https://lists.debian.org/debian-user/2019/03/msg00550.html

mirimir 8y ago
Thanks. So at boot, one would run "erase-machine-id". Then create a random 30-character hexadecimal number. And then either set "the systemd.machine_id= kernel command line parameter" to it. Or pass it via "the option --machine-id= to systemd".
- JdeBP 8y ago
  No. % system-control cat machine-id start:#!/bin/nosh start:true stop:#!/bin/nosh stop:envdir env stop:erase-machine-id run:#!/bin/nosh run:#Set up and tear down the machine ID run:envdir env run:setup-machine-id restart:#!/bin/sh restart:exec false # ignore script arguments %
  - mirimir 8y ago
    OK, thanks. So "setup-machine-id". Does that generate a value that's unrelated to any preexisting versions, analogs, etc? I ask because, when I deleted /etc/machine-id and ran "systemd-machine-id-setup", it generated a new machine-id by copying the D-Bus machine ID.