[GLLUG] Configuring a secondhand managed switch

[Chris Bell]

Hello,
I have a secondhand HP ProCurve 2824 J4903 network switch and some computers 
running Debian 12 (Bookworm) with KDE desktop and DB9 serial ports. I have 
followed the switch "return to factory default reset" procedure, so I think I 
need to connect the Switch Console DB9 to a computer DB9 via a null-modem 
cable to do an initial configuration with terminal configured as 

Baud rate 9600
8Bits + 1 stop bit
No parity
No flow control

Xmodem is mentioned
I could then use a standard VT-100/ANSI or web interface to continue 
configuration.

I have two DB9 to open end adapters plus choc block so that I can easily 
change the connections.
I don't care whether I work as computer user with dialup permission or root.
I have read through various man pages, but nothing I have done so far has 
shown any sign of working, and am not sure whether I am trying the wrong 
software. Could SystemD need to be configured first?
Any suggestions welcome.
I would be happy to install a different version of Debian if needed.
Thanks for any help.
-- 
Chris Bell
www.chrisbell.org.uk