Hello,

I have just done a fresh installation of Fedora 34 on a new computer and used the automatic disk partitioning proposed by the installer.
Now my disk has the following layout:
- /boot (ext4)
- /boot/efi (EFI system partition)
- / (btrfs), with two subvolumes: @root and @home.

In case of a new fresh installation of Fedora, I would like to preserve the @home subvolume only and instead overwrite the rest. However, I am not sure what I should do (note, I don't want to use dnf upgrade).

Just as an experiment, I tried to simulate a fresh (re)installation of Fedora 34 and I selected "Custom" as the disk partitioning method. The installer showed the above disk layout. So, my idea was to use the same approach I used in the past (with ext4 partitions). Specifically:
* For the "/boot" and "/boot/efi" partitions, I specified "/boot" and "/boot/efi" as mount points, respectively, and flagged the "Reformat" checkbox.
* For the "/home" subvolume, I specified "/home" as the mount point, without flagging the "Reformat" checkbox.
* For "/", I cannot tell the installer to reformat it. I am not sure what to do. I would create a new btrfs filesystem with "/" as the mount point, but I am not sure it is correct.

Do you have any suggestions?

Thank you.
Marco