x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
SYSTEMD-GETTY-GENERATOR(8) systemd-getty-generator SYSTEMD-GETTY-GENERATOR(8)
NAME
systemd-getty-generator - Generator for enabling getty instances on the
console
SYNOPSIS
/usr/lib/systemd/system-generators/systemd-getty-generator
DESCRIPTION
systemd-getty-generator is a generator that automatically instantiates
serial-getty@.service on the kernel consoles, if they can function as
ttys and are not provided by the virtual console subsystem. It will
also instantiate serial-getty@.service instances for virtualizer
consoles, if execution in a virtualized environment is detected. If
execution in a container environment is detected, it will instead
enable console-getty.service for /dev/console, and
container-getty@.service instances for additional container pseudo TTYs
as requested by the container manager (see Container Interface[1]).
This should ensure that the user is shown a login prompt at the right
place, regardless of which environment the system is started in. For
example, it is sufficient to redirect the kernel console with a kernel
command line argument such as console= to get both kernel messages and
a getty prompt on a serial TTY. See The kernel's command-line
parameters[2] for more information on the console= kernel parameter.
systemd-getty-generator implements systemd.generator(7).
Further information about configuration of gettys can be found in
systemd for Administrators, Part XVI: Gettys on Serial Consoles (and
Elsewhere)[3].
KERNEL COMMAND LINE
systemd-getty-generator understands the following kernel-command-
line(7) parameters:
systemd.getty_auto=
this options take an optional boolean argument, and default to yes.
The generator is enabled by default, and a false value may be used
to disable it.
ENVIRONMENT
$SYSTEMD_GETTY_AUTO
This variable takes an optional boolean argument, and default to
yes. The generator is enabled by default, and a false value may be
used to disable it.
SYSTEM CREDENTIALS
getty.ttys.serial, getty.ttys.container
These system credentials may be used to spawn additional login
prompts on selected TTYs. The two credentials should contain a
newline-separated list of TTY names to spawn instances of
serial-getty@.service (in case of getty.ttys.serial) and
container-getty@.service (in case of getty.ttys.container) on.
SEE ALSO
systemd(1), kernel-command-line(7), systemd.system-credentials(7),
agetty(8)
NOTES
1. Container
Interface
https://systemd.io/CONTAINER_INTERFACE
2. The kernel's command-line parameters
https://docs.kernel.org/admin-guide/kernel-parameters.html
3. systemd for Administrators, Part XVI: Gettys on Serial Consoles
(and Elsewhere)
https://0pointer.de/blog/projects/serial-console.html
systemd 254 SYSTEMD-GETTY-GENERATOR(8)
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