systemd-firstboot initializes the most basic system settings
interactively on the first boot, or optionally non-interactively when a system
image is created. The service is started if ConditionFirstBoot=yes is
satisfied. This essentially means that /etc is empty, see
systemd.unit(5) for details.
The following settings may be set up:
•The system locale, more specifically the two
locale variables LANG= and LC_MESSAGES
•The system keyboard map
•The system time zone
•The system host name
•The machine ID of the system
•The root user's password
Each of the fields may either be queried interactively by users,
set non-interactively on the tool's command line, or be copied from a host
system that is used to set up the system image.
If a setting is already initialized, it will not be overwritten
and the user will not be prompted for the setting.
Note that this tool operates directly on the file system and does
not involve any running system services, unlike localectl(1),
timedatectl(1) or hostnamectl(1). This allows
systemd-firstboot to operate on mounted but not booted disk images
and in early boot. It is not recommended to use systemd-firstboot on
the running system while it is up.
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. This is useful to operate on a system image mounted to the specified
directory instead of the host system itself.
Sets the system locale, more specifically the
settings. The argument should be a valid
locale identifier, such as "de_DE.UTF-8". This controls the
Sets the system keyboard layout. The argument should be a
valid keyboard map, such as "de-latin1". This controls the
"KEYMAP" entry in the vconsole.conf(5)
Sets the system time zone. The argument should be a valid
time zone identifier, such as "Europe/Berlin". This controls the
Sets the system hostname. The argument should be a host
name, compatible with DNS. This controls the hostname(5)
Sets the system's machine ID. This controls the
Sets the password of the system's root user. This creates
file. This setting exists in two forms:
accepts the password to set directly on the command
line, and --root-password-file=
reads it from a file. Note that it is
not recommended to specify passwords on the command line, as other users might
be able to see them simply by invoking ps(1)
Prompt the user interactively for a specific basic
setting. Note that any explicit configuration settings specified on the
command line take precedence, and the user is not prompted for it.
Query the user for locale, keymap, timezone, hostname and
root password. This is equivalent to specifying --prompt-locale,
--prompt-keymap, --prompt-timezone, --prompt-hostname,
--prompt-root-password in combination.
Copy a specific basic setting from the host. This only
works in combination with --root= (see above).
Copy locale, keymap, time zone and root password from the
host. This is equivalent to specifying --copy-locale,
--copy-keymap, --copy-timezone, --copy-root-password in
Initialize the system's machine ID to a random ID. This
only works in combination with --root=.
Print a short help text and exit.
Print a short version string and exit.