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 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-id5 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 Container Interface. The following options are understood: --root=ROOT Takes a directory path as an argument. All paths will be prefixed with the given alternate ROOT path, including config search paths. On success, 0 is returned, a non-zero failure code otherwise. systemd1, machine-id5, dbus-uuidgen1