Linaro Stable Kernel (LSK) Engineering Build for Versatile Express (Android)

ARM’s customers should use the latest ARM Member Build here:

• http://releases.linaro.org/latest/members/arm/android/images/vexpress-lsk-3.14

ARM Member Builds capture the latest content and information at that ARM wishes to present to it’s partners and users. The Member Build contains a more complete set of release notes, installation and build instructions.

The Linaro Stable Kernel (LSK) is produced, validated and released by Linaro and is based on the linux stable kernel tree.

Linaro releases monthly binary images for the ARM Versatile Express including support for Cortex-A9, Cortex-A5, TC2 (big.LITTLE) CoreTiles and Fast Models.

For support matters related to ARM hardware or firmware images downloaded from ARM sites, please contact ARM support

This build includes is targeted at both Versatile Express and Fast Models. The images are able to boot A5, A9 and TC2 using UEFI. Sources are also made available so you can build your own images (see the ‘Building from Source’ tab).

Where To Find More Information

More information on Linaro can be found on our website.

Known issues

• Bugzilla: #1273 powertop : segmentation fault on android

Feedback and Support

Subscribe to the important Linaro mailing lists and join our IRC channels to stay on top of Linaro development.

• Linaro Android Development mailing list
• Linaro Android IRC channel on irc.freenode.net at #linaro-android

• Landing Team bug reports should be filed in Bugzilla
  • You will need to login to your Linaro account. If you do not have an account or are having problems, email its@linaro.org for help.
• More general bug reports should be filed in Bugzilla against the individual packages that are affected.
• Questions? ask Linaro.
• Interested in commercial support? inquire at Linaro support

Instructions for https://android-build.linaro.org/builds/~linaro-android//

Get artifacts

Scroll down to the ‘Downloads’ section

Click on each link to download:

• boot.tar.bz2
• system.tar.bz2
• userdata.tar.bz2

Get linaro image tools

Run these commands to get all the dependencies for linaro-image-tools and the tip of linaro-image-tools

  $ sudo add-apt-repository ppa:linaro-maintainers/tools
  $ sudo apt-get update
  $ sudo apt-get install linaro-image-tools

If you’re using a released build (with a -release or from releases.linaro.org), skip this step.
If you’re using a “tip” build do not skip the step and do the following:

  $ sudo apt-get install bzr
  $ bzr branch lp:linaro-image-tools

Create media (SD card)

Disable automount (instructions provided for Gnome)

  $ TMP1=$(dconf read /org/gnome/desktop/media-handling/automount)
  $ TMP2=$(dconf read /org/gnome/desktop/media-handling/automount-open)
  $ dconf write /org/gnome/desktop/media-handling/automount false
  $ dconf write /org/gnome/desktop/media-handling/automount-open false

Insert an SD card

Run ‘dmesg’

$ dmesg

Look for a line that looks like the following at the end of the log

[288582.790722]  sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 >

WARNING In the next step, make sure you use /dev/“whatever you see above”.
You can erase your hard drive with the wrong parameter.

Run linaro image tools

$ linaro-android-media-create --mmc /dev/sdc --dev <BOARD> --boot boot.tar.bz2 --system system.tar.bz2 --userdata userdata.tar.bz2

If you’re using tip of linaro image tools

$ ./linaro-image-tools/linaro-android-media-create --mmc /dev/sdc --dev <BOARD> --boot boot.tar.bz2 --system system.tar.bz2 --userdata userdata.tar.bz2

To find run linaro-android-media-create with a -h and read the help.

Restore automount

  $ dconf write /org/gnome/desktop/media-handling/automount $TMP1
  $ dconf write /org/gnome/desktop/media-handling/automount-open $TMP2

Remove the SD card from the device writer and plug it into the board.

Check console output

Plug in an USB-to-serial converter and run minicom

$ minicom -D /dev/ttyUSB0 -w -C minicom.txt

Instructions for https://android-build.linaro.org/builds/~linaro-android//

Get artifacts

Scroll down to the ‘Downloads’ section

Save linaro_android_build_cmds.sh to where you’d like to make your build.

Run the build script

The linaro_android_build_cmds.sh script will download the source and create the build.

  $ chmod +x linaro_android_build_cmds.sh
  $ ./linaro_android_build_cmds.sh -h #To print the script usage

Most commonly used build options:

  $ ./linaro_android_build_cmds.sh -t #To build from the tip of the branch without overlay
  $ ./linaro_android_build_cmds.sh -t -o <overlay> #To build from the tip of the branch with provided overlay
  $ ./linaro_android_build_cmds.sh -m <pinned_manifest> -o <overlay> #To reproduce an exact build from pinned manifest
  $ ./linaro_android_build_cmds.sh -t -l <login-id> #Provide login/access ID to clone and build code from linaro-private repositories

Get linaro image tools

Run these commands to get all the dependencies for linaro-image-tools and the tip of linaro-image-tools

  $ sudo add-apt-repository ppa:linaro-maintainers/tools
  $ sudo apt-get update
  $ sudo apt-get install linaro-image-tools

If you’re using a released build (with a -release or from releases.linaro.org), skip this step. If you’re using a “tip” build do not skip the step and do the following: $ sudo apt-get install bzr $ bzr branch lp:linaro-image-tools

Create media (SD card)

Disable automount (instructions provided for Gnome)

  $ TMP1=$(dconf read /org/gnome/desktop/media-handling/automount)
  $ TMP2=$(dconf read /org/gnome/desktop/media-handling/automount-open)
  $ dconf write /org/gnome/desktop/media-handling/automount false
  $ dconf write /org/gnome/desktop/media-handling/automount-open false

Insert an SD card

Run ‘dmesg’

$ dmesg

Look for a line that looks like the following at the end of the log

[288582.790722]  sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 >

WARNING In the next step, make sure you use /dev/“whatever you see above”.
You can erase your hard drive with the wrong parameter.

Run linaro image tools

$ linaro-android-media-create --mmc /dev/sdc --dev <BOARD> --boot out/target/product/<BOARD>/boot.tar.bz2 --system out/target/product/<BOARD>/system.tar.bz2 --userdata out/target/product/<BOARD>/userdata.tar.bz2

If you’re using tip of linaro image tools

$ ./linaro-image-tools/linaro-android-media-create --mmc /dev/sdc --dev <BOARD> --boot out/target/product/<BOARD>/boot.tar.bz2 --system out/target/product/<BOARD>/system.tar.bz2 --userdata
out/target/product/<BOARD>/userdata.tar.bz2

Restore automount

  $ dconf write /org/gnome/desktop/media-handling/automount $TMP1
  $ dconf write /org/gnome/desktop/media-handling/automount-open $TMP2

Remove the SD card from the device writer and plug it into the board.

Check console output

Plug in an USB-to-serial converter and run minicom

$ minicom -D /dev/ttyUSB0 -w -C minicom.txt