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Adam Ryczkowski
Asked: 2014-08-10 23:32:46 +0800 CST

How to set USER_SUBVOL_RM_ALLOWED capability?

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I try to remove btrfs snapshot as a normal user. I've read, that a user needs to have some special capability/right set: USER_SUBVOL_RM_ALLOWED. How to grant such capability to user??

btrfs

1 Answers

  1. This capability concerns mount point, not user (as it is suggested by the referenced question).

    To add such capability one must remount/mount the filesystem with -o user_subvol_rm_allowed option (case sensitive).

    e.g. this is the mount command I use to mount the btrfs partition with my documents:

    sudo mount -t btrfs -o remount,user_subvol_rm_allowed,compress,rw,noacl,noatime,autodefrag /dev/mapper/mydocs /home/adam/docs

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