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systemd-machine-id-setup — Initialize the machine ID stored in `/etc/machine-id` at install time with a provisioned or randomly

Submitted by: @import:tldr-pages·Mar 2, 2026·

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theetccommandstoredclimachinesystemd-machine-id-setupinitialize

linux

Problem

How to use the systemd-machine-id-setup command: Initialize the machine ID stored in /etc/machine-id at install time with a provisioned or randomly generated ID. Note: Always use sudo to execute these commands as they require elevated privileges. More information: <https://www.freedesktop.org/software/systemd/man/latest/systemd-machine-id-setup.html>.

Solution

systemd-machine-id-setup — Initialize the machine ID stored in /etc/machine-id at install time with a provisioned or randomly generated ID. Note: Always use sudo to execute these commands as they require elevated privileges. More information: <https://www.freedesktop.org/software/systemd/man/latest/systemd-machine-id-setup.html>.

Print the generated or committed machine ID:

systemd-machine-id-setup --print

Specify an image policy:

systemd-machine-id-setup --image-policy {{your_policy}}

Display the output as JSON:

sudo systemd-machine-id-setup --json pretty

Operate on a disk image instead of a directory tree:

systemd-machine-id-setup --image /{{path/to/image}}

Code Snippets

Print the generated or committed machine ID

systemd-machine-id-setup --print

Specify an image policy

systemd-machine-id-setup --image-policy {{your_policy}}

Display the output as JSON

sudo systemd-machine-id-setup --json pretty

Operate on a disk image instead of a directory tree

systemd-machine-id-setup --image /{{path/to/image}}

Context

tldr-pages: linux/systemd-machine-id-setup

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