raspbian os: upgrade to debian 11 (bullseye)

6 minute read published: 2021-11-19

upgrading any os may come with its own quicks and problems. that's a reason why nobody really wants to upgrade their servers to the latest and greatest version. but sticking to the second-latest version does impose a certain security risk. perhaps not today. perhaps not tomorrow. but you will forget that particular server and suddenly 6 months passed by...