When formatting with BTRFS, no subvolume is created

[ElliotLurie]

Hello, when formatting and mounting partitions, you have the option to use BTRFS as a filesystem. This option works, but when formatting the partition there is no subvolume on the device. This can create issues when snapshotting, which is why most distributions automatically create a subvolume named @. While, of course, BTRFS likely isn't the biggest priority to everyone, this would be a very simple change to make that would be helpful for those not wanting to perform a manual installation.

If you want to go further with this, you could have the option to create user specified (or even automatic) subvolumes with specific mount points as well. Notably @home for /home and @cache for /var/cache, but that may take more work as you would also need to check for whether or not /home and /var are even on the filesystem.