Let’s start the discussion about How to upgrade Raspberry Pi in following methods.
The best way to install the latest OS is to backup all of your project and data files and then perform a clean install using Raspberry Pi Imager to copy to a microSD card, but it is possible to upgrade an old Debian 10 “Buster”-based Raspberry Pi OS to Bullseye.
Update Raspberry Pi
Run the below command to update Raspberry pi :
sudo apt update && sudo apt full-upgrade
I hope the strategies listed above work for you. Happy coding and come back again.
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