Upgrading Debian again

bullseye-to-bookworm.sh

#!/bin/bash
set -eux -o pipefail

# Remove old pi packages list
sudo rm -f /etc/apt/apt.conf.d/99rpimonitor /etc/apt/sources.list.d/rpi-monitor.list

# Replace version name in all source lists and fix up naming
sudo sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list.d/*  /etc/apt/sources.list
sudo sed -i '/debian-security\//b; s/\/debian-security/\/debian-security\//g'  /etc/apt/sources.list.d/*  /etc/apt/sources.list
sudo sed -i '/security/ s,bookworm/updates,bookworm-security,g' /etc/apt/sources.list.d/*  /etc/apt/sources.list
sudo sed -i '/non-free/ s/\(non-free\)\(.*\)\bnon-free-firmware\b/\1\2 non-free-firmware/' /etc/apt/sources.list.d/*  /etc/apt/sources.list

# Update package lists
sudo apt update

# Upgrade openssh and apt first to avoid bugs
# https://www.debian.org/releases/stable/amd64/release-notes/ch-information.en.html#ssh-not-available
sudo apt --yes install openssh-server apt

# Run the upgrade
sudo apt --yes dist-upgrade

# Remove unneeded packages
sudo apt --yes autoremove

# Remove orphan packages
sudo apt --yes install deborphan aptitude

sudo aptitude purge ~o
deborphan --guess-all | xargs sudo apt --yes remove

sudo apt autoremove
sudo apt clean