The following describes how you can upgrade a running Kubuntu 18.04 to Debian 10 without having to format the root partition (which usually also contains /home
).
This might sounds complicated at first, but it really isn't. Note that this is using Arch because why not, but you only need a distro on a bootable drive which is not the one being upgraded; Ubuntu or Debian would work as well.
Also, obviously:
- only a fool would try that without proper backups;
- this comes with no guarantee of any kind (if it breaks and you lose all your data, it's your own fault).