Az fstab az induláskor nem játszik, de azért mutatom.
fstab részlet:
UUID=b162b995-9aa8-493b-9a92-6a2d6484246e / btrfs noatime,nodiratime,subvol=@ 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=3298-F16B /boot/efi vfat umask=0077 0 1
# /home was on /dev/sda2 during installation
UUID=b162b995-9aa8-493b-9a92-6a2d6484246e /home btrfs noatime,nodiratime,subvol=@home 0 2
> sudo btrfs subvolume list /
ID 257 gen 5615224 top level 5 path @
ID 258 gen 5615224 top level 5 path @home
ID 259 gen 5613192 top level 5 path @projects
...