Notes to Self About Debian Upgrade

I just attempted to upgrade a Linode VM from Debian 10 Buster to Debian 11 Bullseye, but the upgrade failed and the VM had to be restored from backup. Apparently I was naïve about the amount of changes, and embarrassingly unprepared for this amount of issues. These are some notes for myself, for next time. Some of these I really, really should have thought of.

I think that covers the extent of the issues I encountered. Better luck (well, preparation) next time!


Basic upgrade instructions.

About the repo name change.

MySQL 8.0 upgrade checker.

-- CC0 Björn Wärmedal