The OpenEmbedded build system supports the generation of sysroot files using three different Package Management Systems (PMS):
OPKG: A less well known PMS whose use
originated in the OpenEmbedded and OpenWrt embedded Linux projects.
This PMS works with files packaged in an .ipk
format.
See http://en.wikipedia.org/wiki/Opkg for more
information about OPKG.
RPM: A more widely known PMS intended for GNU/Linux
distributions.
This PMS works with files packaged in an .rms
format.
The build system currently installs through this PMS by default.
See http://en.wikipedia.org/wiki/RPM_Package_Manager
for more information about RPM.
Debian: The PMS for Debian-based systems
is built on many PMS tools.
The lower-level PMS tool dpkg
forms the base of the Debian PMS.
For information on dpkg see
http://en.wikipedia.org/wiki/Dpkg.