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Dextrose/Getting Involved (view source)

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<noinclude>{{GoogleTrans-en}}{{TeamHeader|Dextrose|home=Dextrose|xbgColor=ffe792|join_label=Get Involved}}</noinclude>
 
<noinclude>{{GoogleTrans-en}}{{TeamHeader|Dextrose|home=Dextrose|xbgColor=ffe792|join_label=Get Involved}}</noinclude>
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== F11-XO1 ==
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We use [http://wiki.laptop.org/go/OS_Builder olpc-os-builder], a tool
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used by OLPC to create official and customized system images.
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Our version contains local customizations specific to Paraguay and some
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patches that should be upstreamed.
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== How to create a build ==
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We cook our builds on [[Machine/robbie]], which is Fedora 11 i386.
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I could create builds also on my laptop, which runs Fedora 12 x86_64.
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What the host system runs shouldn't matter much, because all the work
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is being done in a chroot environment.
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* Checkout our local tree:
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  git clone git://git.sugarlabs.org/dextrose/mainline.git
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* One time preparation
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  yum upgrade
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  yum install libtomcrypt-devel bitfrost make gcc mtd-utils
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  make
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* Build:
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  time sudo ./osbuilder.py examples/f11-xo1-py.ini
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* Wait 15 minutes
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* Serve hot
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== Signing ==
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* Put the 4 signing keys somewhere in your home:
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bernie@robbie:~$ ll src/olpc/keys/
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-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pyo1.private
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-rw-------. 1 bernie bernie  270 Feb  5  2009 pyo1.public
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-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pys1.private
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-rw-------. 1 bernie bernie  270 Feb  5  2009 pys1.public
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-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pyw1.private
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-rw-------. 1 bernie bernie  270 Feb  5  2009 pyw1.public
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* Make sure the keys are '''NOT''' world-readable
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* Edit the paths in the <tt>[signing]</tt> section of <tt>examples/f11-xo1-py.ini</tt>
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== Publishing the images ==
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I'm currently publishing selected builds in [http://oficina.paraguayeduca.org/~bernie/f11-xo1-py/ my public html folder].
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Signed builds should be published only if they implement the OLPC anti-theft system
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([http://wiki.laptop.org/go/Antitheft_HowTo OATS]). Signing does
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not have anything to do with quality or endorsement (i.e. signed builds are not
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necessarily bug-free).
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* TODO: We don't have a place for publishing official images yet
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* TODO: We don't have a procedure for releasing builds to field technicians (we may use repo.paraguayeduca.org in the future)
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* TODO: We don't keep release notes for our builds (we should probably use the wiki)
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== Customizing the build ==
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The topic of  is too vast to discuss in detail here. Start by reading http://git.paraguayeduca.org/gitweb/users/bernie/olpc-os-builder.git/blob_plain/HEAD:/doc/README README] in the olpc-os-builder tree. Then, as needed, read the various <tt>README</tt>
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files contained in the [http://git.paraguayeduca.org/gitweb/users/bernie/olpc-os-builder.git/tree/HEAD:/modules modules] directory.
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Being a Build Master involves knowledge of many workflows, including:
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* Building Sugar in [http://wiki.sugarlabs.org/go/Development_Team/Jhbuild sugar-jhbuild].
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* Dealing with yum and [http://www.rpm.org/wiki/Docs rpm].
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* Understanding the [http://fedoraproject.org/wiki/Packaging/Guidelines Fedora packaging] workflow and conventions.
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* Creating yum package repositories with <tt>[http://createrepo.baseurl.org/]</tt>.
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* Uploading activities to [http://activities.sugarlabs.org].
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* General understanding of the Linux system plumbing infrastructure: [http://www.kernel.org/ kernel],
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[http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html udev], [http://www.freedesktop.org/wiki/Software/dbus dbus], [http://www.freedesktop.org/wiki/Software/DeviceKit DeviceKit], [http://www.freedesktop.org/wiki/NetworkManager NetworkManager],
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[http://www.x.org/wiki/ Xorg]...
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* Flashing laptops and debugging any problems
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* Interaction with the Sugar and OLPC community to solve issues and minimize our divergence from the official builds.
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== Upstream ==
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Our upstream code comes from dev.laptop.org:
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git remote add olpc git://dev.laptop.org/projects/olpc-os-builder
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git fetch olpc
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git log olpc/master
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== Building custom kernels ==
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$ git clone git://git.paraguayeduca.org/users/bernie/olpc-2.6
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$ cd olpc-2.6
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$ setarch i386 make ARCH=i386 xo_1-kernel-rpm
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[[Category:SIG]]
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