.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
+.. SPDX-License-Identifier: CC-BY-4.0
+.. Copyright (C) 2019 Wind River Systems, Inc.
+
+Developer-Guide
+===============
.. contents::
:depth: 3
:local:
-Developer-Guide
-===============
+This project implements a real time platform to deploy the O-CU and O-DU and it's based on Yocto/OpenEmbedded.
-.. note:
-.. * This section is used to describe what a contributor needs to know in order to work on the componenta
+This includes a Yocto/OpenEmbedded compatible layer meta-oran and wrapper scripts
+to pull all required Yocto/OE layers to build out the reference platform.
-.. * this should be very technical, aimed at people who want to help develop the components
+To contribute on this project, basic knowledge of Yocto/OpenEmbedded is needed, please refer to the following docs if you want to learn about how to develop with Yocto/OpenEmbedded:
-.. * this should be how the component does what it does, not a requirements document of what the component should do
+- `Yocto dev manual`_
+- `OpenEmbedded wiki`_
-.. * this should contain what language(s) and frameworks are used, with versions
-
-.. * this should contain how to obtain the code, where to look at work items (Jira tickets), how to get started developing
-
-.. * This note must be removed after content has been added.
+.. _`Yocto dev manual`: https://www.yoctoproject.org/docs/2.6.3/dev-manual/dev-manual.html
+.. _`OpenEmbedded wiki`: http://www.openembedded.org/wiki/Main_Page
Processes
---------
+1. Prerequisite for build environment
+`````````````````````````````````````
+
+* Your host need to meet the requirements for Yocto, please refer to:
+
+ * `Compatible Linux Distribution`_
+ * `Supported Linux Distributions`_
+ * `Required Packages for the Build Host`_
+
+* The recommended and tested host is Ubuntu 16.04/18.04 and CentOS 7.
+
+ * To install the required packages for Ubuntu 16.04/18.04:
+
+.. _`Compatible Linux Distribution`: https://www.yoctoproject.org/docs/2.6.3/brief-yoctoprojectqs/brief-yoctoprojectqs.html#brief-compatible-distro
+.. _`Supported Linux Distributions`: https://www.yoctoproject.org/docs/2.6.3/ref-manual/ref-manual.html#detailed-supported-distros)
+.. _`Required Packages for the Build Host`: https://www.yoctoproject.org/docs/2.6.3/ref-manual/ref-manual.html#required-packages-for-the-build-host
+
+::
+
+ $ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
+ build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
+ xz-utils debianutils iputils-ping make xsltproc docbook-utils fop dblatex xmlto \
+ python-git
+
+ * To install the required packages for CentOS 7:
+
+::
+
+ $ sudo yum install -y epel-release
+ $ sudo yum makecache
+ $ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \
+ diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat \
+ perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue perl-Digest-SHA \
+ python34-pip xz which SDL-devel xterm
+
+
+2. Use wrapper script build_oran.sh to setup build env and build the image
+``````````````````````````````````````````````````````````````````````````
+::
-Actions
--------
+ # Get the wrapper script with either curl or wget
+ $ curl -o build_oran.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_oran.sh;hb=HEAD'
+ $ wget -O build_oran.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_oran.sh;hb=HEAD'
+
+ $ chmod +x build_oran.sh
+ $ WORKSPACE=/path/to/workspace
+ $ ./build_oran.sh -w ${WORKSPACE}
+If all go well, you will get the ISO image in:
+${WORKSPACE}/prj_wrl1018_oran/tmp-glibc/deploy/images/intel-x86-64/oran-image-inf-host-intel-x86-64.iso