F11 for XO-1: Difference between revisions
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This page once was the home for the efforts to get Fedora 11 running on the XO-1 hardware, following in the footsteps of [[F11 for 1.5]]. Since that time, the work was completed and formalized into several OLPC OS releases known as the 10.1 series (for XO-1, starting at 10.1.2). For more information, see '''[[Releases]]'''. |
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OLPC is developing a new XO operating system (a new Fedora spin, see [[F11 for 1.5]]) for the [[XO-1.5]] hardware revision. It includes various improvements and modernizations over the last released version ([[Release notes/8.2.1|release 8.2.1]] on 2009-05-13) for the [[XO-1]] hardware shipped to many [[deployments]] and [[G1G1]] donors. |
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Unfortunately, due to time pressures and limited resources, these new software builds are only available for the under-development XO-1.5 hardware. However, it would be relatively easy for a community member to make builds available for XO-1, based on the efforts for XO-1.5. Ideally this would be an ongoing process where a few people work together, publishing a new build every few days, acting on as much user feedback as possible, etc. It would also be beneficial to keep a close eye on the XO-1.5 efforts to learn about the changes being made. |
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Here's how you might do it: |
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Prerequisites: Fedora 11 system, with sudo access and a decent amount of disk space. |
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yum install git livecd-tools mtd-utils |
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As your regular user, check out fedora-xo: |
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git clone git://dev.laptop.org/projects/fedora-xo |
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In [http://dev.laptop.org/git/projects/fedora-xo this git tree]: |
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* master branch is currently unused. |
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* xo-1.5 branch contains all build scripts for the new OS release for the XO-1.5. |
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* xo-1 branch is the result of an experiment of an OLPC developer who did a one-off backport to XO-1 in his spare time. This is your starting point. |
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git checkout --track -b xo-1 origin/xo-1 |
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As a quick summary of the most important files, |
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; olpc-base.ks and olpc-desktop.ks : the [http://fedoraproject.org/wiki/Anaconda/Kickstart kickstart] files used to make the core software image. |
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; livecd-creator : processes the core software files to create a .iso image. |
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; livecd-iso-to-xo.sh : converts that .iso into an image that can be flashed onto XOs. |
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; Makefile : wraps up the whole process. |
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The ongoing process will be to synchronize the xo-1 branch with any new changes made to the xo-1.5 branch. Really, there are only a few differences that must be maintained between the 2 branches. You can see these differences with this command: |
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git diff 38951c7..xo-1 |
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The above command shows the state of the XO-1.5 branch at the point of last synchronization compared to the XO-1 branch. The differences that have to be maintained (for example, geode video driver, jffs2 file-system) can be seen here, but even this was an unclean synchronization and could be made cleaner (there is some "noise" in the diff). |
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The next step is to look at all of the recent changes that have been made to xo-1.5 and merge them into xo-1. I would do this by comparing the 2 trees as follows: |
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git diff xo-1 origin/xo-1.5 |
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Your task is to apply all the hunks of this diff (excluding ones that are specific to the XO-1.5 hardware) so that the output of this command looks similar to (or better than) the output of the earlier diff - i.e. so that the only differences between the 2 branches are the handful of changes that account for the differences in hardware. |
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Even in current state (before merging any new changes), the xo-1 branch is ready for building and should produce a bootable build. Here's how you kick off a build: |
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mkdir output cache builddir |
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cd output |
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make -f ../Makefile os1.img |
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After some time, the output file "os1.img" will be ready for flashing onto your unlocked XO. |
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If you're happy with this process, the next steps are to publish your build by uploading it to a webhost, and then announcing it on the OLPC devel and Fedora-OLPC mailing lists. |
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If you are a known community member, OLPC would probably be happy to give you access to machines where you can run these builds from and host the downloads. Otherwise, this is still a possibility but you'd probably first be expected to make and publish a couple of builds on your own. Similarly, it should be possible to get you direct access to commit to the main fedora-xo repository. Once usable builds are being published regularly, you could also take over this wiki page. |
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I may have forgotten a few considerations in the above braindump, but if you're interested then the next step is to give it a try and write about any troubles on the devel@lists.laptop.org mailing list, and we'll help you figure it out. -- [[User:DanielDrake]] 2009-07-14 |
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[[Category:Build system]] |
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Latest revision as of 16:00, 10 February 2011
This page once was the home for the efforts to get Fedora 11 running on the XO-1 hardware, following in the footsteps of F11 for 1.5. Since that time, the work was completed and formalized into several OLPC OS releases known as the 10.1 series (for XO-1, starting at 10.1.2). For more information, see Releases.