BTRFS installed not right in fstab

Issues & Assistance
1

So, the Timeshift won’t work because it need btrfs filesystem with ‘root subvolume (@)’

 ~  cat /etc/fstab                                                                                                                                                                                                         Sat 13 Mar 2021 06:43:47 PM MSK
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
#
UUID=9848-4A15 /boot/efi vfat defaults,relatime 0 0
UUID=67e11e40-4615-4216-8f1d-ed017108afa6 / btrfs defaults,relatime,space_cache,autodefrag,inode_cache 0 0
UUID=11304d6f-6cef-4bdf-9c43-2bb79296818a /home btrfs defaults,relatime,space_cache,autodefrag,inode_cache 0 0
UUID=7d2efbd0-083b-4fbf-b7d5-5b05b4a59b78 swap swap defaults 0 0
LABEL=Data_Storage /mnt/Data auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=Game_Storage /mnt/Games_HDD auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=Fast_Gaming /mnt/Games_SSD auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=Fast_Games /home/casual/Games auto nosuid,nodev,nofail,x-gvfs-show 0 0
 ~  lsblk                                                                                                                                                                                                                  Sat 13 Mar 2021 06:43:56 PM MSK
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0         7:0    0  98.4M  1 loop /var/lib/snapd/snap/core/10823
loop1         7:1    0  97.9M  1 loop /var/lib/snapd/snap/core/10583
sda           8:0    0   1.8T  0 disk 
├─sda1        8:1    0   817G  0 part /mnt/Data
├─sda2        8:2    0     1T  0 part /mnt/Games_HDD
└─sda3        8:3    0    22G  0 part /run/media/casual/7e8ac623-a8d9-4782-a5d9-8cf34458a739
sdb           8:16   0 119.2G  0 disk /mnt/Games_SSD
nvme0n1     259:0    0 232.9G  0 disk 
├─nvme0n1p1 259:1    0   512M  0 part /boot/efi
├─nvme0n1p2 259:2    0  47.7G  0 part /run/timeshift/backup
├─nvme0n1p3 259:3    0    17G  0 part [SWAP]
├─nvme0n1p4 259:4    0   100G  0 part /home/casual/Games
└─nvme0n1p5 259:5    0  52.3G  0 part /home
2

I fixed it with this guide 18.04 - Where are my BTRFS subvolumes? - Ask Ubuntu

(Guess I messed up at editing fstab, so I edited it again after reboot)

3

Actually it didn’t helped, because in fstab should be subvol=/@ instead subvol=@

Anyway, the problem is - installer can’t deal with brfs’s subvolumes, instead creating them, it creates different patitions (in case setting appropriate option in installer) or just don’t use them

(Forgot to mention, I installed my system about year ago, so it might be already fixed)

4

We are sorry for the inconvenience you have had with this. The problem will be solved in a new installer (in development), since the current one does not do it correctly.

I take this opportunity to greet you. Take care of yourself.

5

I wrote an extensive guide on how to create Timeshift-compatible Btrfs subvolumes on an existing RebornOS installation on the RebornOS Wiki: Btrfs system snapshots and rollbacks with Timeshift - RebornOS Wiki - RebornOS - OSDN

By now it has only been tested by me, so be warned.
If you managed to successfully follow the instructions, or you think something in the guide is wrong or misleading, please give feedback.