Hello @bequimão , thank you so mouch for supporting!
here is the output:
[live@localhost ~]$ sudo cat /mnt/@
# /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=1565-D9F3 /boot vfat defaults,noatime 0 2
UUID=6cff182e-4506-428a-9857-bb3cd2ec5cd1 swap swap defaults,noatime,discard 0 0
UUID=22e48f51-09ce-4aeb-969e-10a33b2513d0 / btrfs
subvol=@,defaults,noatime,space_cache,autodefrag,discard,compress=lzo 0 1
UUID=22e497b7-721a-43af-b1fb-1fe7c2b85a4d /home btrfs
defaults,noatime,space_cache,autodefrag,discard,compress=lzo 0 2
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0