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  • I'm curious more about the missing parts, how did you identified it, did this missing parts cause me to cannot access my data even though it is already mounted? Commented May 16, 2023 at 8:23
  • I think I kinda understand, the mount is somewhat like not finished and your command is help my desktop pc to link the folder with the correct path, I have some adaptation to the command that you send. in open suse tumbleweed (currently that I use) the path of mounted hard drive is on /run/media/username/uuid instead /media/username/uuid like on ubuntu I could access my data now Commented May 16, 2023 at 8:29
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    In btrfs, the subvolumes are somewhat like LVM logical volumes: together with the main volume, they share the physical space (so you won't have the "my free space is in the wrong filesystem" problem that is common to traditional setups with no LVM and multiple filesystems) but they must be mounted like separate filesystems. Commented May 16, 2023 at 8:29
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    Having to "mount" the subvolumes separately is purely due to openSUSE setting them up like that by default. In general, btrfs subvolumes are ordinary directories which can be attached anywhere in the directory hierarchy, so you can have /home and /var subvolumes under the / subvolume and mount everything in one go by mounting /. However, openSUSE chose to hide all these subvolumes from plain sight by putting them under /@/ so you have to bind mount them to the right places explicitly. Commented May 16, 2023 at 15:14
  • @TooTea Thanks for clarification; so far I've encountered btrfs only on SuSE systems, so their way of setting it up is the one I'm familiar with. Commented May 16, 2023 at 15:23