Difference between revisions of "Dextrose/Getting Involved"

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== F11-XO1 ==
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* Build system source: http://git.sugarlabs.org/projects/dextrose/repos/mainline
  
We use [http://wiki.laptop.org/go/OS_Builder olpc-os-builder], a tool
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* Out-of-tree patches for Sugar 0.88: http://people.sugarlabs.org/bernie/sugar/sugar-0.88-patches/
used by OLPC to create official and customized system images.
 
  
Our version contains local customizations specific to Paraguay and some
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* Yum repository for custom Fedora packages (along with sources): http://download.sugarlabs.org/dextrose/testing/f11-0.88/rpms/
patches that should be upstreamed.
 
  
== How to create a build ==
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* IRC: #sugar on irc.freenode.net (English preferred, Spanish also spoken by several members)
  
We cook our builds on [[Machine/robbie]], which is Fedora 11 i386.
 
I could create builds also on my laptop, which runs Fedora 12 x86_64.
 
What the host system runs shouldn't matter much, because all the work
 
is being done in a chroot environment.
 
 
* Checkout our local tree:
 
 
  git clone git://git.sugarlabs.org/dextrose/mainline.git
 
 
* One time preparation
 
 
  yum upgrade
 
  yum install libtomcrypt-devel bitfrost make gcc mtd-utils
 
  make
 
 
* Build:
 
 
  time sudo ./osbuilder.py examples/f11-xo1-py.ini
 
 
* Wait 15 minutes
 
 
* Serve hot
 
 
== Signing ==
 
 
* Put the 4 signing keys somewhere in your home:
 
 
bernie@robbie:~$ ll src/olpc/keys/
 
-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pyo1.private
 
-rw-------. 1 bernie bernie  270 Feb  5  2009 pyo1.public
 
-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pys1.private
 
-rw-------. 1 bernie bernie  270 Feb  5  2009 pys1.public
 
-rw-------. 1 bernie bernie 1,2K Feb  5  2009 pyw1.private
 
-rw-------. 1 bernie bernie  270 Feb  5  2009 pyw1.public
 
 
* Make sure the keys are '''NOT''' world-readable
 
 
* Edit the paths in the <tt>[signing]</tt> section of <tt>examples/f11-xo1-py.ini</tt>
 
 
 
== Publishing the images ==
 
 
I'm currently publishing selected builds in [http://oficina.paraguayeduca.org/~bernie/f11-xo1-py/ my public html folder].
 
 
Signed builds should be published only if they implement the OLPC anti-theft system
 
([http://wiki.laptop.org/go/Antitheft_HowTo OATS]). Signing does
 
not have anything to do with quality or endorsement (i.e. signed builds are not
 
necessarily bug-free).
 
 
* TODO: We don't have a place for publishing official images yet
 
 
* TODO: We don't have a procedure for releasing builds to field technicians (we may use repo.paraguayeduca.org in the future)
 
 
* TODO: We don't keep release notes for our builds (we should probably use the wiki)
 
 
 
== Customizing the build ==
 
 
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>
 
files contained in the [http://git.paraguayeduca.org/gitweb/users/bernie/olpc-os-builder.git/tree/HEAD:/modules modules] directory.
 
 
Being a Build Master involves knowledge of many workflows, including:
 
 
* Building Sugar in [http://wiki.sugarlabs.org/go/Development_Team/Jhbuild sugar-jhbuild].
 
 
* Dealing with yum and [http://www.rpm.org/wiki/Docs rpm].
 
 
* Understanding the [http://fedoraproject.org/wiki/Packaging/Guidelines Fedora packaging] workflow and conventions.
 
 
* Creating yum package repositories with <tt>[http://createrepo.baseurl.org/]</tt>.
 
 
* Uploading activities to [http://activities.sugarlabs.org].
 
 
* General understanding of the Linux system plumbing infrastructure: [http://www.kernel.org/ kernel],
 
[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],
 
[http://www.x.org/wiki/ Xorg]...
 
 
* Flashing laptops and debugging any problems
 
 
* Interaction with the Sugar and OLPC community to solve issues and minimize our divergence from the official builds.
 
 
== Upstream ==
 
 
Our upstream code comes from dev.laptop.org:
 
 
git remote add olpc git://dev.laptop.org/projects/olpc-os-builder
 
git fetch olpc
 
git log olpc/master
 
 
== Building custom kernels ==
 
 
$ git clone git://git.paraguayeduca.org/users/bernie/olpc-2.6
 
$ cd olpc-2.6
 
$ setarch i386 make ARCH=i386 xo_1-kernel-rpm
 
  
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See also the documentation of the Dextrose [[/Build System]].
  
 
[[Category:SIG]]
 
[[Category:SIG]]

Revision as of 15:34, 26 July 2010

Dextrose   ·   Get Involved   ·   Contacts   ·   Resources   ·   FAQ   ·   Roadmap   ·   To Do   ·   Meetings

  • IRC: #sugar on irc.freenode.net (English preferred, Spanish also spoken by several members)


See also the documentation of the Dextrose /Build System.