-FS_NAME=$(btrfs filesystem show -m / 2>/dev/null | head -1 | cut -d"'" -f2)
-if [ -z "$FS_NAME" ]; then
- FS_NAME=$(grep " btrfs " /etc/fstab \
- | grep "^LABEL=" \
- | grep " $VOLUME_PATH " \
- | cut -d'"' -f2 \
- | cut -d'=' -f2- \
- | cut -d' ' -f1)
-fi