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List:       debian-user
Subject:    Re: headless server with console on USB port
From:       Dan Ritter <dsr () randomstring ! org>
Date:       2022-08-18 12:41:06
Message-ID: 20220818124106.itaqfm4j6hw7czwn () randomstring ! org
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Rainer Dorsch wrote: 
> is it possible to run a console on a USB port of a headless server?

Yes and no.

The T20 doesn't seem to have iDRAC (IPMI) support, so BIOS/UEFI
is not available through a serial console.

The first time you have an opportunity for a serial console is in GRUB;
then again you have an opportunity for the kernel output; then finally
you can have a login on a serial terminal.

You will need a USB to RS232 serial adapter, and then an appropriate
cable to talk to your terminal device. The other end can also be a USB
to RS232 serial adapter. In between you might have a 9 pin
serial cable or a specially wired RJ45 (looks like ethernet)
cable.

The name of the device should be something like /dev/ttyS0
(S1,S2,S3...) or can be /dev/ttyUSB0. USB ports can be renumbered on
each boot, but as long as there is only one serial adapter connected,
it should always be recognized as /dev/ttyUSB0

-dsr-

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