11-media-by-label-auto-mount.rules

# Credit for Axllent.org
# See: https://www.axllent.org/docs/view/auto-mounting-usb-storage/
#
# Updated: 5/7/2017
#    Rev.: 1.01
#      By: Robert S. Rau
# Changes: Changed directory from /media to /media/pi since a fresh boot with USB FLASH drive installed ended up at /media/pi with our without this rule.
#
# 
KERNEL!="sd[a-z][0-9]", GOTO="media_by_label_auto_mount_end"  
# Import FS infos  
IMPORT{program}="/sbin/blkid -o udev -p %N"  
# Get a label if present, otherwise specify one  
ENV{ID_FS_LABEL}!="", ENV{dir_name}="%E{ID_FS_LABEL}"  
ENV{ID_FS_LABEL}=="", ENV{dir_name}="usbhd-%k"  
# Global mount options  
ACTION=="add", ENV{mount_options}="relatime"  
# Filesystem-specific mount options  
ACTION=="add", ENV{ID_FS_TYPE}=="vfat|ntfs", ENV{mount_options}="$env{mount_options},utf8,gid=100,umask=002"  
# Mount the device  
ACTION=="add", RUN+="/bin/mkdir -p /media/pi/%E{dir_name}", RUN+="/bin/mount -o $env{mount_options} /dev/%k /media/pi/%E{dir_name}"  
# Clean up after removal  
ACTION=="remove", ENV{dir_name}!="", RUN+="/bin/umount -l /media/pi/%E{dir_name}", RUN+="/bin/rmdir /media/pi/%E{dir_name}"  
# Exit  
LABEL="media_by_label_auto_mount_end"