Opkg (Open PacKaGe Management) is a lightweight package management system based upon ipkg. It is written in C and resembles APT/dpkg in operation. It is intended for use on embedded Linux devices and is used in this capacity in the OpenEmbedded and OpenWrt projects. Wikipedia
root@edison:~# opkg update
Downloading http://iotdk.intel.com/repos/1.5/intelgalactic/Packages.
Updated list of available packages in /var/lib/opkg/iotkit.
root@edison:~#
Enable a Opkg feed and update package list, we will not upgrade to avoid consuming disk space
root@edison:~# vi /etc/opkg/base-feeds.conf # Add the below lines to the opened file
src/gz all http://repo.opkg.net/edison/repo/all
src/gz edison http://repo.opkg.net/edison/repo/edison
src/gz core2-32 http://repo.opkg.net/edison/repo/core2-32
root@edison:~# opkg update
Downloading http://repo.opkg.net/edison/repo/all/Packages.gz.
Inflating http://repo.opkg.net/edison/repo/all/Packages.gz.
Updated list of available packages in /var/lib/opkg/all.
Downloading http://repo.opkg.net/edison/repo/edison/Packages.gz.
Inflating http://repo.opkg.net/edison/repo/edison/Packages.gz.
Updated list of available packages in /var/lib/opkg/edison.
Downloading http://repo.opkg.net/edison/repo/core2-32/Packages.gz.
Inflating http://repo.opkg.net/edison/repo/core2-32/Packages.gz.
Updated list of available packages in /var/lib/opkg/core2-32.
Downloading http://iotdk.intel.com/repos/1.5/intelgalactic/Packages.
Updated list of available packages in /var/lib/opkg/iotkit.
root@edison:~#