I've been meaning to put this up for a while. Providing nothing goes wrong the whole process is actually very easy! This is basically a rehash of the Angstrom webpage so you might prefer to follow that taking notes of the minor deviations below:
export OETREE="/home/doug/OE"
mkdir -p ${OETREE}
cd ${OETREE}
git clone git://git.openembedded.org/openembedded.git openembedded
cd openembedded
git checkout origin/stable/2009 -b stable/2009
To update the OE metadata simply:
cd ${OETREE}/openembedded
git pull
Now make the suggested script source-me.txt changing OETREE to suit your needs:
export OETREE="/home/doug/OE"
BBPATH=${OETREE}/:${OETREE}/build/:${OETREE}/openembedded/
PKGDIR=${OETREE}/build/
DL_DIR=${OETREE}/downloads
echo Setting up dev env for Ångström
if [ -z ${ORG_PATH} ] ; then
ORG_PATH=${PATH}
export ORG_PATH
fi
if [ -z ${ORG_LD_LIBRARY_PATH} ] ; then
ORG_LD_LIBRARY_PATH=${LD_LIBRARY_PATH}
export ORG_LD_LIBRARY_PATH
fi
PATH=${OETREE}/openembedded/bitbake/bin:${ORG_PATH}
cd $PKGDIR
LD_LIBRARY_PATH=
export PATH LD_LIBRARY_PATH BBPATH
export LANG=C
export BB_ENV_EXTRAWHITE="MACHINE DISTRO OETREE ANGSTROM_MODE ANGSTROMLIBC LIBC"
echo "Altered environment for OE Development"
I also had to set:
sudo sysctl vm.mmap_min_addr=0
Then setup local.conf:
mkdir -p ${OETREE}/build/conf
cp ${OETREE}/openembedded/contrib/angstrom/local.conf ${OETREE}/build/conf/
Now edit ${OETREE}/build/conf/local.conf and add this to the end:
MACHINE = "mini2440"
Now download the mini2440 config file from openembedded. Put this in:
${OETREE}/openembedded/conf/machine/
Now source the source-me.txt, go to the OE tree, check it's up to date
source source-me.txt
cd ${OETREE}/openembedded
git pull - -rebase
Now build the images, you can build all of them or just one. I used the base image for running Qt but i also built the gpe image which worked nicely if you need it.
bitbake base-image ; bitbake console-image ; bitbake x11-image ; bitbake gpe-image
Be prepared to saturate your internet connection, wait a long time and take up a lot of disk space!
The result ends up in:
${OETREE}/angstrom-dev/deploy/glibc/images/mini2440
You should have the image(s) in .jffs2 for flashing and .tar.gz for mounting using NFS.