Section: systemd-machine-id-setup (1)
- 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.
Similarly, 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 m[blue]Container Interfacem.
The following options are understood:
- Takes a directory path as an argument. All paths will be prefixed with the given alternate root path, including config search paths.
- Print a short help text and exit.
- Print a short version string and exit.
- Container Interface