nach dem Systemerstart kan man sich mit Putty am Raspi anmelden.

sudo su

apt-get update
apt-get upgrade

root@raspberrypi3:/home/pi# apt-get update
Hit:1 http://archive.raspberrypi.org/debian bullseye InRelease
Get:2 http://raspbian.raspberrypi.org/raspbian bullseye InRelease [15.0 kB]
Fetched 15.0 kB in 2s (9,003 B/s)
Reading package lists... Done
root@raspberrypi3:/home/pi#
root@raspberrypi3:/home/pi#
root@raspberrypi3:/home/pi# apt-get upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

root@raspberrypi3:/home/pi# cat /etc/*release
PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

oder

root@raspberrypi3:/home/pi# lsb_release -d
Description:    Raspbian GNU/Linux 11 (bullseye)

sudo apt-get install samba

Quellen:
https://wiki.ubuntuusers.de/Samba_Server/
https://www.ionos.de/digitalguide/server/konfiguration/samba-server-plattformuebergreifendes-netzwerk/