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systemd-getty-generator − Generator for enabling getty instances on the console
/usr/lib/systemd/system−generators/systemd−getty−generator
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] .
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.
$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.
systemd(1), kernel-command-line(7), agetty(8)
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1. |
Container |
Interface
https://systemd.io/CONTAINER_INTERFACE
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2. |
The kernel’s command-line parameters |
https://docs.kernel.org/admin-guide/kernel-parameters.html
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3. |
systemd for Administrators, Part XVI: Gettys on Serial Consoles (and Elsewhere) |
http://0pointer.de/blog/projects/serial-console.html