F11 for 1.5: Difference between revisions

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This page once was the home for the efforts to get Fedora 11 running on the XO-1.5 hardware. Since that time, the work was completed and formalized into several OLPC OS releases known as the 10.1 series. For more information, see '''[[Releases]]'''.
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OLPC is developing a Fedora 11 Remix for the [[XO-1.5]].
The first release of this is now available, see [[Release notes/10.1.0]].

== Requirements ==

The release is primarily [[Has objective:: targeted at the [[XO 1.5]]]], and must be ready in time for that hardware to ship.
Because of the new kernel work required, no previous distribution will work on the XO-1.5 without modification.
As a result, we must prioritize creating a shippable XO-1.5 build over creating a build that works well on both XO-1.5 and XO-1.
F11-1.5 builds do not run on the XO-1, however volunteers have leveraged this work to create [[F11 for XO-1]] builds.

== Hardware status ==

A small number of XO-1.5 A-test boards were manufactured and distributed to the core developers. A larger stock of B-test boards and laptops were distributed to more developers and testers through the [[Contributors program]].

== Software status ==

See [[Release notes/10.1.0]].

== Mailing list ==

We talk to each other on the [http://www.redhat.com/mailman/listinfo/fedora-olpc-list fedora-olpc-list mailing list]. New builds are announced here.

== Bugs and outstanding work ==

[http://dev.laptop.org/report/43 This trac report] shows current bugs for the XO-1.5. Look in the ''distro'', ''kernel'' and ''x window system'' components for the software-related tickets.

== Build system ==

We are using Fedora's standard livecd-creator to produce LiveCD images of our release. We then run a script on the output .iso which makes it an "installed" (non-live) image and repacks it in a format suitable for flashing onto the XO-1.5.

The code is at git://dev.laptop.org/projects/fedora-xo in the xo-1.5 branch ([http://dev.laptop.org/git/projects/fedora-xo/?h=xo-1.5 web interface]).

== Download ==

Builds are here: http://dev.laptop.org/~cjb/f11-1.5/

== Installation ==

Make sure your [[Firmware#XO-1.5|Firmware is up to date]]. These instructions were tested with q3a16, but be sure to use the latest!

=== Internal microSD ===

This is the conventional method; the build is installed to the internal microSD device and no external device needs to be attached afterward to boot it.

'''ALL USER DATA WILL BE ERASED FROM THE LAPTOP!'''

Download os''XY''.zd from the build directory and put it on a USB memory. Turn on the XO-1.5 with the check mark (tick) game key pressed down, then press ESC (X) to get to the OFW prompt "ok".

Insert the USB memory, then type
fs-update u:\osXY.zd
Progress will be displayed. Once finished, remove the USB memory, and type
reboot
If you use an SD card instead of a USB memory, use "<code>sd:\</code>" instead of "<code>u:\</code>".

=== External SD ===

This is an alternate method; the build is installed onto a portable SD card memory device, which must be plugged in to boot, and must remain plugged in while the system is running. It is intended for testing, and should not change the data on the internal microSD.

Select an SD card that has nothing you need on it, and is at least 4Gb in size.

'''ALL USER DATA WILL BE ERASED FROM THE SD CARD'''

Perform the steps as above for the internal microSD, but change the target used by the ''fs-update'' command, like this
devalias fsdisk /sd/disk@1:0
fs-update u:\osXY.zd

=== External USB ===

This is an alternate method; the build is installed onto a portable USB memory device, which must be plugged in to boot, and must remain plugged in while the system is running. It is intended for testing, and should not change the data on the internal microSD.

This method is also more risky, since it is so easy to destroy data on a system.

Select a USB memory that has nothing you need on it, and is at least 4Gb in size.

'''ALL USER DATA WILL BE ERASED FROM THE USB MEMORY!'''

Download os''XY''.img.gz from the build directory and write it block-wise to a USB memory
zcat osXY.img.gz > /dev/sdX

Note: known to work on os48, known to not work on os40 (per #9681 and #9686).

=== Updating OS ===

If you wish to update the XO 1.5 operative system you can type on the terminal:

olpc-update f11_xo1.5-NN #Where NN is the os build number


== Modifications to Fedora ==

We're trying to work as close to Fedora (and the upstream projects which Fedora distributes) as possible; however, we also have the pressure of having to build a laptop and its software on a fixed timetable, so our priority remains on making things work.

We'll keep this list updated as modifications come and go. Most of the changes can be found in the source RPMs found here: http://dev.laptop.org/~dsd/xo1.5-rpms/

=== kernel ===

We maintain our own kernels for XO-1 and XO-1.5 based on Linux 2.6.31 at git://dev.laptop.org/olpc-2.6 in the olpc-2.6.31 branch ([http://dev.laptop.org/git/olpc-2.6/log/?h=olpc-2.6.31 web interface]) or later branches for newer kernels ([http://lists.laptop.org/pipermail/devel/2009-July/024939.html laptop devel mailing list post]).

==== RPMs ====

* http://dev.laptop.org/~mdengler/xo-1/
* http://dev.laptop.org/~dilinger/xo-1.5/
* http://dev.laptop.org/~dsd/xo1.5-rpms/
* http://dev.laptop.org/~sayamindu/xo1.5-rpms/

We aim to get much or all of this work upstream, but at the same time there are various challenges associated with that, and we need somewhere to develop and test our changes before they are ready.

The main modifications in our kernel include:
* Various patches to VIA drivers to support the brand-new VX855 chipset which the XO-1.5 is based on
* Support for OpenFirmware, the XO equivalent of a BIOS.
* We build the initramfs using dracut, not mkinitrd.

=== olpc-bootanim ===

This new package is OLPC's boot animation. Plymouth [http://lists.freedesktop.org/archives/plymouth/2009-June/000127.html doesn't play nicely in the presence of serial consoles] and has [http://lists.freedesktop.org/archives/plymouth/2009-June/000130.html performance issues] so we are sticking to a system which we know is working for now.

We tried to get this included in Fedora at https://bugzilla.redhat.com/show_bug.cgi?id=510573 but ran into a headache because the package needs to have a Conflict with plymouth (it provides /usr/bin/plymouth by-design), Conflicts are not permitted without good reason and "we don't have time to fix plymouth" is not a good reason. This package can live out-of-tree for now, and will hopefully die one day when plymouth is usable on XO and includes our theme.

=== sugar ===

<trac>9403</trac>: we've added Ad-Hoc networking support to Sugar-0.84
<trac>9384</trac>: and fixed a crash that occurs when you install content bundles

=== sugar-toolkit ===

Sugar hardcodes the font size of certain elements at size 10 and does not allow this to be configured. This looks too big on the small XO screen. We fork the package to adjust the font size to size 7.

== See also ==
*[[F11 for XO-1]], notes on adapting this effort for the current [[XO]] hardware.
*[[Rawhide-XO]], an older project.

== Standard information ==

<!-- NOTE:
Status, Primary objectives (Has_objective), and Schedule (Target_date): are annotated elsewhere

Do
Primary maintainer: and ECO:
still apply at the new slimmer OLPC?
Lead customer: [[Lead customer::???]] -->

Build number and URL: [[Build number::999]]

[[Category:Releases]]
[[Category:Linux distributions]]
[[Category:Build system]]
[[Category:XO-1.5]]

Latest revision as of 15:58, 10 February 2011

This page once was the home for the efforts to get Fedora 11 running on the XO-1.5 hardware. Since that time, the work was completed and formalized into several OLPC OS releases known as the 10.1 series. For more information, see Releases.

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