Help me please with apt-btrfs-snapshot in MAUI2

[chileno]

apt-btrfs-snapshot works in other distros based on ubuntu 16.04 , in maui-2-64bit not
The apt-btrfs-snapshot tool expects the root file system to be in a subvolume called "@", when I install MAUI2,
i choose btrfs as file system in "/" and Maui does not create any subvolume called "@", that's the problem.

Any idea how to fix it?

chileno@maui:~$ sudo apt-btrfs-snapshot supported
The system does not support apt-btrfs-snapshot

The same happens with apt-btrfs-snapshot_3.5.1_all

chileno@maui:~$ btrfs version
btrfs-progs v4.4

If i added subvol=@ in fstab;
chileno@maui:~$  sudo apt-btrfs-snapshot supported
Supported

but it does not work because there is no partition "@"


I found some information here to understand the problem but not how to fix it.

[leszek]

Double check if your partition is really a btrfs one.

[chileno]

Double check if your partition is really a btrfs one.

chileno@maui:~$ sudo btrfs filesystem show /dev/sda1
Label: none  uuid: 61465e92-49bf-4b2e-b8cd-ec44db8a97ab
       Total devices 1 FS bytes used 142.07GiB
       devid    1 size 232.88GiB used 171.02GiB path /dev/sda1

chileno@maui:~$ sudo file -sL /dev/sda1
/dev/sda1: BTRFS Filesystem sectorsize 4096, nodesize 16384, leafsize 16384, UUID=61465e92-49bf-4b2e-b8cd-ec44db8a97ab, 152553992192/250055688192 bytes used, 1 devices

[leszek]

This seems to be a bug that should be fixed with the package of apt-btrfs-snapshot in the xenial-proposed repository.
See: https://bugs.launchpad.net/ubuntu/+sourc...ug/1454306

If you want to activate the proposed repository go to the update manager -> edit -> software sources -> updates and check the pre-released updates.

[chileno]

This seems to be a bug that should be fixed with the package of apt-btrfs-snapshot in the xenial-proposed repository.
See: https://bugs.launchpad.net/ubuntu/+sourc...ug/1454306

If you want to activate the proposed repository go to the update manager -> edit -> software sources -> updates and check the pre-released updates.

Thanks for your time, the solution you show me worked properly in LinuxMint 18 KDE and Neon, but no in MAUI2, I do not know why  

[leszek]

Are the btrfs-tools installed?

[chileno]

Are the btrfs-tools installed?

Yes
chileno@maui:~$ sudo apt install btrfs-tools  
[sudo] password for chileno:  
Leyendo lista de paquetes... Hecho
Creando árbol de dependencias        
Leyendo la información de estado... Hecho
btrfs-tools ya está en su versión más reciente (4.4-1).