Bootstrap Entware-ng on Synology DS

entware-ng.sh

#!/bin/bash

# Script installs Entware-ng (https://github.com/Entware/Entware-ng)
# on Synology DSM 6.2 under /opt directory.
# Must be run with sudo. Can be used as a scheduled task on system boot.

printf -- "---------------------------\n"
printf -- "| Installing Entware-ng.. |\n"
printf -- "---------------------------\n"

DEVICE="/volume1/@Entware-ng/opt"
DIR="/opt"

if mount | grep -qF "on $DIR type"; then
    printf "Directory \"%s\" already mounted.\n" "$DIR"
else
    mkdir -p "$DIR"
    mount -v -o bind,rw "$DEVICE" "$DIR"
    sh "$DIR/etc/init.d/rc.unslung" start
fi

printf -- "Done\n"
exit 0