systemd-machine-id-setup

systemd
Developer Lennart Poettering lennart@poettering.net
systemd-machine-id-setup 1
systemd-machine-id-setup Initialize the machine ID in /etc/machine-id
`systemd-machine-id-setup`

## Description

`systemd-machine-id-setup` may be used by system installer tools to initialize the machine ID stored in `/etc/machine-id` at install time with a randomly generated ID. See machine-id 5 for more information about this file.

This tool will execute no operation if `/etc/machine-id` is already initialized.

If a valid D-Bus machine ID is already configured for the system the D-Bus machine ID is copied and used to initialize the machine ID in `/etc/machine-id`.

If run inside a KVM virtual machine and a UUID is passed via the `-uuid` option this UUID is used to initialize the machine ID instead of a randomly generated one. The caller must ensure that the UUID passed is sufficiently unique and is different for every booted instanced of the VM.

Similar, if run inside a Linux container environment and a UUID is set for the container this is used to initialize the machine ID. For details see the documentation of the Container Interface.

## Options

The following options are understood:

`-h`
`--help`

  Prints a short help text and exits.

`--version`

  Prints a short version string and exits.

## Exit status

On success 0 is returned, a non-zero failure code otherwise.

## See Also

systemd 1, machine-id 5, dbus-uuidgen 1