Noob here. I’m currently using Ubuntu 21.04 with ext4 on an internal 2TB nvme drive (AMD Ryzen with no dual boot). I want to upgrade to 21.10 with btrfs. I’m assuming I need to totally wipe out 21.04 and do a clean install of 21.10 in order to go from ext4 to btrfs. If this assumption is wrong, let me know.
I’ll first do a Clonezilla clone of my main hard drive to an external drive, just in case. Also I’ll have multiple backups of all my user files (FeeFileSync and Restic).
I’ll have Ubuntu 21.10 loaded onto a USB stick ready to install. I’ll select btrfs during the 21.10 install process.
What else do I need to do to help assure this upgrade goes smoothly? I’m a newbie and very much a beginner with Linux. I have very very limited knowledge of the command line. What are the common problems that arise when doing this kind of upgrade?