Re: Serial Console with Fedora 33

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On Sun, 2020-12-13 at 16:58 -0500, Steve Dickson wrote:
> Hello,
> 
> How does one set up a serial console with F33?
> 
> In the past I would edit kernelopts with grub2-editenv
> and set "console=tty0 console=ttyS0,115200n8".
> 
> As well as set the following in /etc/grub2.conf
> terminal_output console
> #set timeout=5
> serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
> terminal_input serial
> terminal_output serial
> 
> But in Fedora 33 there is no kernelopts in the grub2 env,
> so does one create a serial console in f33?

Hi,

>From [1], you can find [2] just search for ttyS0

[1]
https://docs.fedoraproject.org/en-US/fedora/rawhide/system-administrators-guide/kernel-module-driver-configuration/Working_with_the_GRUB_2_Boot_Loader/

[2]
To add and remove arguments from a kernel’s GRUB menu entry, use a
command as follows:


~]# grubby --remove-args="rhgb quiet" --args=console=ttyS0,115200 --
update-kernel /boot/vmlinuz-4.2.0-1.fc23.x86_64


This command removes the Red Hat graphical boot argument, enables 
boot message to be seen, and adds a serial console. As the console 
arguments will be added at the end of the line, the new console will 
take precedence over any other consoles configured.

> tia,
> 
> steved.
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-- 
Sérgio M. B.
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