Yocto Project Build Instructions

In order to prevent excess disk and CPU usage when a class tries to build the Yocto Project distribution for the BeagleBone Black please follow the instructions below. I cuts down the compilation time from one to two hours to about five minutes.

Preparation

Change directory to /home/EESY2/poky

If you cannot go into that directory ask to be included in the embnerds group.

Execute this command:

]$ . oe-init-build-env bbb-`logname`

NOTE: Be sure to use the correct "back-ping" ` not the ' "ping"!

You are brought into a directory named bbb-<your loginname>. This is where you can work with you local copy of the Yocto Project.

Next important thing to do is to change a few settings in the conf/local.conf file.

First locate the line

#MACHINE ?= "beaglebone"

remove the #

Next locate the line

#DL_DIR ?= "${TOPDIR}/downloads"

it is just a few lines below the machine configuration line.

Create a new line here with this content:

DL_DIR ?= "/home/EESY2/poky/bbb/downloads"

be sure to copy exactly this line - it points to the huge download that has already been done once.

And finally locate

#SSTATE_DIR ?= "${TOPDIR}/sstate-cache"

Create a new line with this content:

SSTATE_DIR ?= "/home/EESY2/poky/bbb/sstate-cache"

There is no need to configure anything else at this point.

Baking a fresh distribution

In your /home/EESY2/poky/bbb-<your username> directory you can now execute the command:

]$ bitbake core-image-base

After a few minutes your newly created distribution for BeagleBone Black is ready.

Follow the instruction on [BeagleBone Black] page to copy the necessary files to a SD-card.