systemd-machine-id-setup
Initialize the machine ID
TLDR
Print the generated or committed machine ID
$ systemd-machine-id-setup --print
Specify an image policy$ systemd-machine-id-setup --image-policy [policy]
Display the output as JSON$ sudo systemd-machine-id-setup --json pretty
Operate on a disk image$ systemd-machine-id-setup --image /[path/to/image]
SYNOPSIS
systemd-machine-id-setup [options]
DESCRIPTION
systemd-machine-id-setup initializes the machine ID stored in /etc/machine-id. This unique identifier is generated at install time and should remain constant throughout the machine's lifetime.
The machine ID is used by various system services to identify the local system. It is randomly generated if not provisioned during installation. The tool can also operate on disk images for pre-configuration.
PARAMETERS
--print
Print the machine ID after setup--root _path_
Operate on specified root directory--image _path_
Operate on specified disk image--image-policy _policy_
Specify image mounting policy--commit
Commit a transient machine ID to disk--json _format_
Output in JSON format (pretty, short, off)
CAVEATS
Requires root privileges. Should only be run once during system installation or when /etc/machine-id is missing. Changing the machine ID can break services that depend on it. Part of the systemd suite.
SEE ALSO
systemd-id128(1), machine-id(5), systemd-firstboot(1)