Arch Linux

bugsmanagement

Member

Registered: 2017-04-21

Posts: 201

BTRFS, should I mount subvolumes ?

Hello everyone,

Each Btrfs file system has a top-level subvolume with ID 5. It can be mounted as / (by default)

Btrfs has an independent mountable root for the volume (top level subvolume) and for each subvolume

Where I'm confused at, take the scenario below:

Partition: /dev/sda1

btrfs subvolume create /mnt/@ #257
btrfs subvolume create /mnt/subvol1
btrfs subvolume create /mnt/subvol2
btrfs subvolume create /mnt/subvol3
btrfs subvolume set-default 257 /mnt

vs

btrfs subvolume create /mnt/@ #257
btrfs subvolume create /mnt/@/subvol1
btrfs subvolume create /mnt/@/subvol2
btrfs subvolume create /mnt/@/subvol3
btrfs subvolume set-default 257 /mnt

For the former, say I just mount /dev/sda1 /mnt. I don't expect to see subvol{1,2,3}, but I do? Seems to me there is no difference between former and the latter? My question, can someone help clarify this to me?

EDIT:

My goal, I like to avoid populating my fstab, there is going to be allot sshfs/ntfs/cifs/partition entries, and I like to be able to carry it over when necessary.

Cheers,
Regards

Last edited by bugsmanagement (2019-03-12 04:53:42)