I have a volume which I believe to be btrfs, but the partition bearing it has an odd number of blocks and there is a little space left before the next partition.
I'd like to check it's type (btrfs expected) and know the exact space It occupies in my partition (When asking google, I get information about the apparent size vs real size problem related with snapshots, which I don't care about right now)
To make things clearer :
- I'm NOT looking for the size/type of the partition itself, but for the size of the filesystem (the data structure) which should normally be smaller or equal the partition size; and
- I'm also NOT looking for the free space inside the filesystem.