On 10/26/25 9:14 AM, Joe Average wrote:
Chris Murphy wrote:
On Wed, Oct 22, 2025, at 10:08 PM, home user via users wrote:
...
If you don't want compression just remove the mount option from /etc/fstab - note it
needs to be removed from the / line, since that line is really a "remount" and
is what applies compression file system wide. The compression option on /home is just an
artifact of the installer. There isn't per subvolume compression as a mount option.
does it harm to have compress=zstd:1 on subvolumes in the fstab ?
like this:
UUID=2ab6e75b-4e3c-4a9d-a329-431178fdd0e7 / btrfs
subvol=ROOT,compress=zstd:1 0 0
UUID=2ab6e75b-4e3c-4a9d-a329-431178fdd0e7 /home btrfs
subvol=HOME,compress=zstd:1 0 0
UUID=2ab6e75b-4e3c-4a9d-a329-431178fdd0e7 /home/DATA btrfs
subvol=DATA,compress=zstd:1 0 0
compression is set per subvolume. I don't know why Chris said that.
The btrfs docs say it's per mount.
--
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