Resource: Q4.11 Name: Ubuntu Linaro Evaluation build Date: 28-11-2011 Speaker: Ricardo Salveti

1. Ricardo Salveti de Araujo
ricardo.salveti@linaro.org
Developer Platform Tech Lead
UDS-P / Connect Q4.11
Working, developing and
contributing with the Ubuntu
Linaro Evaluation Build

2. Ubuntu LEB
 Supported images:
 Nano: very minimal rootfs that still supports apt/dpkg
 ALIP: Nano + X11 + Browser
 Developer: Nano + Developer Tools
 Ubuntu-Desktop: clone of the Ubuntu image, with Linaro
sauce
 Based on top of the latest Ubuntu release
 Integration of the Linaro WGs outputs during a
release cycle
 Daily images at snapshots.linaro.org
 HWPacks for all the supported hardwares

3. Relationship with Ubuntu
 Development and support on top of the latest
stable release
 Rebase once a newer Ubuntu release is out
 Integration, development and optimization
going at both the stable Linaro releases and
Upstream
 Goal: Ubuntu fully enabled at the supported
platforms, and optimized for ARM
 Help making Ubuntu the reference GNU/Linux
distribution for ARM

4. Monthly Release
 Planning currently happening at the first week
of the month
 Goal is to move it to at least the mid of the previous
cycle
 Work guided by the TSC requirements, but also
agreed with Ubuntu and Linaro developers
 On going integration of the Linaro WGs
components during the monthly cycle
 Testing done by the dev platform engineers
(board owners) and LAVA
 RC out at the last Monday of the month

5. Ubuntu Image Builds
 Offspring is responsible for
generating all the different images
 Based on live-build, with similar
scripts as Ubuntu/Debian
 HWpacks are also produced by
offspring
 Uses the Ubuntu archive + Linaro
Overlay PPA

6. Component Integration
 Development tree available at
git.linaro.org or launchpad
 Announce the plan of having the new
component integrated at the LEBs
 Continuous Integration enablement for
the component
 Tests available at LAVA
 Goal to also enable the new
component/release at Ubuntu upstream

7. Component Integration (cont.)
Watch Component
Tree
Cross / Build
Publish at the
staging PPA /
Repository
Images / HWpacks
Test reports at
LAVA
Monthly Cycle

8. Continuous Integration
 Native Build (small packages):
 Pure bzr or a bzr import branch from git
 Launchpad recipe for daily builds
 Package builds going to the Staging PPA
 Example: glmark2, glcompbench, u-boot-linaro
 Cross Builds (big components):
 Build job at jenkins (ci.linaro.org)
 Cross package build
 Integration directly with LAVA
 Example: package kernel trees (linux-linaro,
linux-lt-omap)

9. Installation and Usage
 Development Builds:
 http://snapshots.linaro.org/oneiric/
 Releases:
 http://releases.linaro.org/platform/linaro-o/
 Based on RC + Respins (fixes)
 Installation:
 $ sudo add-apt-repository ppa:linaro-maintainers/tools
 $ sudo apt-get update
 $ sudo apt-get install linaro-image-tools
 $ sudo linaro-media-create --mmc /dev/mmcblk0 --binary
linaro-TARBALL.tar.gz --hwpack hwpack_linaro.tar.gz --dev
$BOARD

10. Installation and Usage (cont.)
 Pre-installed images:
 http://releases.linaro.org/images/11.10/on
eiric/
 Installation:
 $ SDCARD=/dev/ #sdcard could be
something sdb or mmcblk0
 $ IMGFILE=overo-nano.img
 $ gunzip ${IMGFILE}.gz
 $ dd bs=4k if=${IMGFILE} of=$
{SDCARD}

11. Bug Reports and Image Support
 Project 'Linaro-Ubuntu':
 https://launchpad.net/linaro-ubuntu
 Bug report:
 https://bugs.launchpad.net/linaro-ubuntu/+fileb
 Triaging happens with the release manager
and at the weekly dev platform IRC
meeting (thursday 14UTC)
 Support channel:
 linaro-dev
 #linaro

12. Thanks!
rsalveti @ #linaro

13. www.linaro.org