Le 24 avril 2023 DdB a écrit : > 1. Upgrade from current configuration using upgrade path tools (apt) and > plan only one step (going to bullseye) at a time, eventually having to > upgrade a second time later.
Usually this is the safest way. But why don't you upgrade sooner to bullseye ? Do you have some problematic packages ? > 2. Install a fresh bullseye and try to manually make it as similar as > can be to my current workhorse The more you customized your system the harder it will be > From my past experiences, i recall one problem, that i am still > suffering from: the file group and user owners, that reside on a > different disk set (on a ZFS pool, to be more precise). In order to > alleviate the problem, i did at one point fetch an older /etc/group and > passwd file from a backup and created a mess. I'd love to straigthen > this out now. If you need to you should only change manually your userid/groupid and don't change system ids. Replacing entire passwd is usually a bad idea. Also you should check your user/group are conforming to the minumum defined in /etc/login.defs