In-Place Upgrade Debian 11 Bullseye to 12 Bookworm

#Debian #Linux #Bookworm

Full steps can be found at https://i12bretro.github.io/tutorials...

   01. Log into the Debian 11 device
   02. Run the following commands in a terminal window
         clean apt cache
         sudo apt clean
         update apt repositories from bullseye to bookworm
         find /etc/apt -type f -name "*.list" -print0 | xargs -0 sudo sed -i.bak "s/bullseye/bookworm/g"
         add optional non-free repos
         echo "deb https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware" | sudo tee /etc/apt/sources.list
         update software repositories
         sudo apt update
         install software updates
         sudo apt dist-upgrade -y
         remove unnecessary packages
         sudo apt autoremove -y
         clean apt cache
         sudo apt clean
         reboot
         sudo reboot now
   03. That's it, Debian 11 Bullseye has been updated in place to Debian 12 Bookworm
 


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