First enter a SSH session on your nas as root (See here).

Check if your CPU model is a armv5, armv7, mips, x86-32 or x86-64. You can do so with one of the following command:

• cat /proc/cpuinfo | grep -m 1 ‘model name’ | cut -d “:” -f 2 | cut -d “@” -f 1
• uname -a

Create now a folder to install Entware (NB.: The folder /opt may not yet exist. I.e.: Optware may not be installed yet. We will delete it if it exists. If it cannot be deleted – you could have a message that it’s in use – then reboot your Synology first).

mkdir -p /volume1/@entware-ng/opt
rm -rf /opt
ln -sf /volume1/@entware-ng/opt /opt

Depending on your CPU, execute one of the following commands

• For armv5: wget -O – http://pkg.entware.net/binaries/armv5/installer/entware_install.sh | /bin/sh
• For armv7: wget -O – http://pkg.entware.net/binaries/armv7/installer/entware_install.sh | /bin/sh
• For mips: wget -O – http://pkg.entware.net/binaries/mipsel/installer/installer.sh | /bin/sh
• For x86-32: wget -O – http://pkg.entware.net/binaries/x86-32/installer/entware_install.sh | /bin/sh
  For x86-64: wget -O – http://pkg.entware.net/binaries/x86-64/installer/entware_install.sh | /bin/sh

Go now to your DSM and open the “Control Panel”. There, select the “Task Scheduler” > “Create” > “Triggered Task” > “User-defined script”

Configure this new task to run at “Boot-up” :

And to run the following commands:

/bin/ln -sf /volume1/@entware-ng/opt /opt
/opt/etc/init.d/rc.unslung start

Finally, to include /opt/bin and /opt/sbin to the PATH variable, add . /opt/etc/profile at the end of /etc/profile with this command:

echo “. /opt/etc/profile” >> /etc/profile

You can now use the command opkg. The first action to do is: opkg update

Check the list of packages available with: opkg list | more

NB.: To remove IPKG from your Synology:

1. umount /opt
2. rm -R /opt
3. rm -R /volume1/opt or rm -R /volume1/@optware (depends on where IPKG was installed)
4. delete every reference to optware in /etc/rc.local
5. rm /etc/rc.optware
6. check that there is nothing related to ipkg in /etc/crontab
7. reboot your NAS