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Last active February 12, 2025 23:50
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TrueNAS UGREEN DXP4800 Plus Status LED Guide

UGREEN DXP4800 Plus TrueNAS Status LED Guide

20240609_035951642_iOS

The following is a quick guide on getting basic status LED functionality working with TrueNAS running on the UGREEN DXP4800 Plus. Theoretically, it should work on all models (with some small revisions to the script), but I only have a DXP4800 Plus. :)

This guide is for cron job that runs a script to update the LEDs every couple minutes, but I'm sure the following can be modified for blinky LEDs as well.

Steps:

  1. Manually build or download the ugreen_leds_cli tool from https://github.com/miskcoo/ugreen_dx4600_leds_controller.
  2. Plop it somewhere on your NAS (E.g. a dataset).
  3. In the same dataset, create your .sh script that controls the LEDs. At the bottom of this gist is my modified version of meyergru's.
  4. Make the script executable: chmod +X your-script.sh.
    • You may also need to make ugreen_leds_cli executable as well.
  5. In TrueNas, navigate over to System SettingsAdvanced
  6. Under Init/Shutdown Scripts Create the following to load the i2c-dev module on boot:
    • Description: Enable i2c-dev
    • Type: Command
    • Command: modprobe i2c-dev
    • When: Pre Init
  7. Under Cron Jobs we then create a task to run every x minutes:
    • Description: Update Status LEDS
    • Command: /mnt/path/to/your/script.sh
    • Run as User: root
    • Schedule: */5 * * * * (or however often you desire)
  8. Reboot and wait a bit for your cron job to run.

Sources:

Example script:

#! /bin/bash

#set -x

SCRIPTPATH=$(dirname "$0")
echo $SCRIPTPATH

devices=(p n x x x x)
map=(power netdev disk1 disk2 disk3 disk4)

# Check network status
gw=$(ip route | awk '/default/ { print $3 }')
if ping -q -c 1 -W 1 $gw >/dev/null; then
    devices[1]=u
fi

# Map sdX1 to hardware device
declare -A hwmap
echo "Mapping devices..."
while read line; do
    MAP=($line)
    device=${MAP[0]}
    hctl=${MAP[1]}
    partitions=$(lsblk -l -o NAME | grep "^${device}[0-9]\+$")
    for part in $partitions; do
        hwmap[$part]=${hctl:0:1}
        echo "Mapped $part to ${hctl:0:1}"
    done
done <<< "$(lsblk -S -o NAME,HCTL | tail -n +2)"

# Print the hwmap for verification
echo "Hardware mapping (hwmap):"
for key in "${!hwmap[@]}"; do
    echo "$key: ${hwmap[$key]}"
done

# Check status of zpool disks
echo "Checking zpool status..."
while read line; do
    DEV=($line)
    partition=${DEV[0]}
    echo "Processing $partition with status ${DEV[1]}"
    if [[ -n "${hwmap[$partition]}" ]]; then
        index=$((${hwmap[$partition]} + 2))
        echo "Device $partition maps to index $index"
        if [ ${DEV[1]} = "ONLINE" ]; then
            devices[$index]=o
        else
            devices[$index]=f
        fi
    else
        echo "Warning: No mapping found for $partition"
    fi
done <<< "$(zpool status -L | grep -E '^\s+sd[a-h][0-9]')"

# Output the final device statuses
echo "Final device statuses:"
for i in "${!devices[@]}"; do
    echo "$i: ${devices[$i]}"
    case "${devices[$i]}" in
        p)
            "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 255 255 255 -on -brightness 64
            ;;
        u)
            "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 255 255 255 -on -brightness 64
            ;;
        o)
            "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 0 255 0 -on -brightness 64
            ;;
        f)
            "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 255 0 0 -blink 400 600 -brightness 64
            ;;
        *)
            "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -off
            ;;
    esac
done
@S2ciOnur
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S2ciOnur commented Dec 18, 2024

@republicandaddy / @Weingartens Are you please able to provide some detailed steps on how to get it to work. I am getting the error below when i follow the steps: sudo: process 6789 unexpected status 0x57f Killed Executed CronTask - /mnt/Data/led/leds.sh > /dev/null: sudo: process 6789 unexpected status 0x57f Killed

same here.
Changed zpool to /sbin/zpool in the script.
the cli got rwxrwxrwx
it worked before i updated to the new stable TrueNas.
Ugreen DXP4800 Plus
TrueNas Scale ElectricEel-24.10.1
But now i get this:

Mapping devices...
Mapped sda1 to 0
Mapped sdb1 to 1
Mapped sdc1 to 2
Mapped sdd1 to 3
Hardware mapping (hwmap):
sda1: 0
sdd1: 3
sdb1: 1
sdc1: 2
Checking zpool status...
Processing sda1 with status ONLINE
Device sda1 maps to index 2
Processing sdb1 with status ONLINE
Device sdb1 maps to index 3
Processing sdc1 with status ONLINE
Device sdc1 maps to index 4
Processing sdd1 with status ONLINE
Device sdd1 maps to index 5
Final device statuses:
0: p
sudo: process 187901 unexpected status 0x57f
./led.sh: line 60: 187901 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 255 255 255 -on -brightness 64
1: u
sudo: process 187902 unexpected status 0x57f
./led.sh: line 60: 187902 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 255 255 255 -on -brightness 64
2: o
sudo: process 187903 unexpected status 0x57f
./led.sh: line 60: 187903 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 0 255 0 -on -brightness 64
3: o
sudo: process 187904 unexpected status 0x57f
./led.sh: line 60: 187904 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 0 255 0 -on -brightness 64
4: o
sudo: process 187905 unexpected status 0x57f
./led.sh: line 60: 187905 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 0 255 0 -on -brightness 64
5: o
sudo: process 187906 unexpected status 0x57f
./led.sh: line 60: 187906 Killed "$SCRIPTPATH/ugreen_leds_cli" ${map[$i]} -color 0 255 0 -on -brightness 64

@JavierAntonYuste
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JavierAntonYuste commented Dec 27, 2024

@S2ciOnur it happened to me the same. It is because of the latest update of TrueNAS to 24.10.1, they fixed a ZFS bug that allowed to run scripts in admin directory, when it should not be possible: https://forums.truenas.com/t/shell-script-permission-denied-with-24-10-1/27941

Changing the script location to your data pool fixes it :)

Extracted directly from TrueNAS 24.10.1 Release Notes:

The boot pool is now properly enforcing the default setuid and noexec options (NAS-127825). This restores the default boot pool behavior to be restricted from general use. Users that are currently attempting to exec scripts from a /home or other boot pool location should move these to a data pool location.

@rybackisback
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Can someone please point me to where the ugreen_leds_cli tool exist on https://github.com/miskcoo/ugreen_dx4600_leds_controller? Is it just the cli folder under ugreen_leds_controller that I need to download?

@S2ciOnur
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@S2ciOnur it happened to me the same. It is because of the latest update of TrueNAS to 24.10.1, they fixed a ZFS bug that allowed to run scripts in admin directory, when it should not be possible: https://forums.truenas.com/t/shell-script-permission-denied-with-24-10-1/27941

Changing the script location to your data pool fixes it :)

Extracted directly from TrueNAS 24.10.1 Release Notes:

The boot pool is now properly enforcing the default setuid and noexec options (NAS-127825). This restores the default boot pool behavior to be restricted from general use. Users that are currently attempting to exec scripts from a /home or other boot pool location should move these to a data pool location.

Thank you, i fixed it.

@S2ciOnur
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Can someone please point me to where the ugreen_leds_cli tool exist on https://github.com/miskcoo/ugreen_dx4600_leds_controller? Is it just the cli folder under ugreen_leds_controller that I need to download?

https://github.com/miskcoo/ugreen_leds_controller/releases/download/v0.1-debian12/ugreen_leds_cli

@rybackisback
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Can someone please point me to where the ugreen_leds_cli tool exist on https://github.com/miskcoo/ugreen_dx4600_leds_controller? Is it just the cli folder under ugreen_leds_controller that I need to download?

https://github.com/miskcoo/ugreen_leds_controller/releases/download/v0.1-debian12/ugreen_leds_cli

Thank you!

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