Edit File: 64-btrfs-dm.rules
SUBSYSTEM!="block", GOTO="btrfs_end" KERNEL!="dm-[0-9]*", GOTO="btrfs_end" ACTION!="add|change", GOTO="btrfs_end" ENV{ID_FS_TYPE}!="btrfs", GOTO="btrfs_end" # Once the device mapper symlink is created, tell btrfs about it # so we get the friendly name in /proc/mounts (and tools that read it) ENV{DM_NAME}=="?*", RUN{builtin}+="btrfs ready /dev/mapper/$env{DM_NAME}" LABEL="btrfs_end"