Auto mount Raspberry PI USB.md

Sources:

1. https://raspberrypi.stackexchange.com/a/66324
2. https://raspberrypi.stackexchange.com/a/72518
3. https://github.com/avanc/mopidy-vintage/wiki/Automount-USB-sticks

So, I found a solution that works quite well. Big thanks to avanc and his udev rule that makes this possible. I also modified it so that it could mount up to 4 flash drives at the same time (it can be increased if needed).

Requirements

1. Install pmount if not installed sudo apt-get install pmount.
2. This script mounts drives to /media/usb*, so make sure those folders aren't occupied. If you want a cleaner look, don't create any folders.

Udev rule

1. Create file /etc/udev/rules.d/usbstick.rules
2. Insert: ACTION=="add", KERNEL=="sd[a-z][0-9]", TAG+="systemd", ENV{SYSTEMD_WANTS}="usbstick-handler@%k"
3. Save and close.

Systemd service

1. Create file /lib/systemd/system/usbstick-handler@.service
2. Insert:

[Unit]
Description=Mount USB sticks
BindsTo=dev-%i.device
After=dev-%i.device

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/local/bin/automount %I
ExecStop=/usr/bin/pumount /dev/%I

3. Save and close.

Mount script

1. Create file /usr/local/bin/automount
2. Insert:

#!/bin/bash

PART=$1
FS_LABEL=`lsblk -o name,label | grep ${PART} | awk '{print $2}'`

if [ -z ${FS_LABEL} ]
then
    /usr/bin/pmount --umask 000 --noatime -w --sync /dev/${PART} /media/${PART}
else
    /usr/bin/pmount --umask 000 --noatime -w --sync /dev/${PART} /media/${FS_LABEL}_${PART}
fi

3. Save and close.
4. Give the permitions sudo chmod +x /usr/local/bin/automount.

Finish

1. Reboot your RPi and test.

Notes

1. You can change pmount parameters, but these allow anyone r/w access to usb.
2. The amount of mountpoints can be changed.
3. Thanks to avanc for his udev rule and service.

[Global]
vol preset = default_for_all_vol
hostname = RaspberryPi
log file = /var/log/netatalk.log
log level = default:error
uam list = uams_dhx.so, uams_dhx2.so
save password = yes
keep sessions = yes
mimic model = Xserve

[default_for_all_vol]
file perm = 0665
directory perm = 0775
valid users = @pi

;[Homes]
;path = library
;basedir regex = /home
;home name = "Library"

[Library]
time machine = no
path = /media