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Operating Systems AIX aix kernel changes protocol on serial? Post 302303465 by nilleb on Thursday 2nd of April 2009 04:56:00 PM
Old 04-02-2009
thanks, a list worth to know

thanks dukessd for the list.

what I meant was: is there a way to alter the operating system communication parameters using the firmware?

I now realize that it isn't probably possible. this morning I was thinking to the firmware/SMS as a sort of grub, through which, even if in a limited way, we can browse the filesystem and pass parameters to the booting kernel.

so my question. thanks a lot for your explication.
 

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SYSTEMD-GETTY-GENERATOR(8)				      systemd-getty-generator					SYSTEMD-GETTY-GENERATOR(8)

NAME
systemd-getty-generator - Generator for enabling getty instances on the console SYNOPSIS
/lib/systemd/system-generators/systemd-getty-generator DESCRIPTION
systemd-getty-generator is a generator that automatically instantiates serial-getty@.service on the kernel console(s), 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 kernel-parameters.txt[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]. SEE ALSO
systemd(1), agetty(8) NOTES
1. Container Interface https://www.freedesktop.org/wiki/Software/systemd/ContainerInterface/ 2. kernel-parameters.txt https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.txt 3. systemd for Administrators, Part XVI: Gettys on Serial Consoles (and Elsewhere) http://0pointer.de/blog/projects/serial-console.html systemd 237 SYSTEMD-GETTY-GENERATOR(8)
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