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I am trying run Ubuntu Touch on my Nexus 7 3G Tilapia, but I only see the "Google" splash screen. I have read many forums and found that the /data partition is different on Tilapia and Grouper (mmcblk0p10 and mmcblk0p9).

How I can modify the cmdline and attach datapart=/dev/mmcblk0p10 on it?

OK I solve it

 1.erase all on nexus ( optionally. I do it but not sure in my memory :))

 2.$abootimg -x saucy-preinstalled-system-armel+grouper.img

 3. edit bootimg.cfg 

    cmdline = console=tty1 datapart=/dev/mmcblk0p10 

 4. $abootimg --create saucy-preinstalled-system-armel+grouper.img -f bootimg.cfg -k zImage -r initrd.img 

 5. do fastboot flash all by official manual

 6. go to recovery mode and format data, cache and sdcard partitions

 7. reboot into recovery mode

 8. $adb push /path/to/your/downloaded/saucy-preinstalled-touch-armel+grouper.zip /sdcard/autodeploy.zip

 9. reboot into recovery mode and wait when install is finish

 10. reboot into recovery mode second time

 11. $adb push /path/to/your/downloaded/saucy-preinstalled-touch-armhf.zip /sdcard/autodeploy.zip

 12. reboot into recovery mode and wait when install is finish. After install you got system.

Screen responds on power button (lighter/darker). After some time it darkens.

I try install vncserver, but it say: vncserver: The HOME environment variable is not set.

Sorry for my English.

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Please for your answers use the field above for answers. The button that say "Answer my question". –  Braiam Oct 12 '13 at 14:14

3 Answers 3

How to start ubuntu-touch on Nexus 7 3G Tilapia (nakasig)?

  1. sudo add-apt-repository ppa:phablet-team/tools
    
  2. sudo apt-get update
    
  3. sudo apt-get install phablet-tools android-tools-adb android-tools-fastboot
    
  4. Do all by official manual

  5. phablet-flash ubuntu-system --no-backup -d grouper
    
  6. abootimg -x saucy-preinstalled-system-armel+grouper.img
    
  7. edit bootimg.cfg:

    cmdline = console=tty1 datapart=/dev/mmcblk0p10

  8. abootimg --create saucy-preinstalled-system-armel+grouper.img -f bootimg.cfg -k zImage -r initrd.img
    
  9. reboot to bootloader

  10. fastboot flash boot saucy-preinstalled-boot-armhf+grouper.img
    
  11. reboot device.

  12. wait ~60 sec. Enjoy.
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Point 6 needs to use saucy-preinstalled-boot-armhf+grouper.img

Point 6,7 and 8: instead of extracting the image, abootimg offers commands to just update it:

abootimg -u saucy-preinstalled-boot-armhf+grouper.img -c "cmdline=console=tty1 datapart=/dev/mmcblk0p10"

(you can check with abootimg -i saucy-preinstalled-boot-armhf+grouper.img if it worked)

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Just in case anyone else is looking for info on this, - I did it (mine Tilapia nakasig). - using the 2014-06-18 build of utopic: it works, almost: GSM is hopelessly unworkable camera is dead bluetooth seems dead but wifi runs ok

You could probably poke around and find drivers for the camera and bluetooth I guess but GSM will be and remain hopelessly dead in the water, unless you fix the ofonod (and probably a whole host of other things)

This is a perverse hack of https://wiki.ubuntu.com/Touch/Install#Manual_Download_.26_Installation

start here: (you need the bzr package to do this)
Get the bzr branch of project-rootstock-ng and,
(  much later ! )    run the rootstock-touch-install script. 

cd to somewhere convenient in your home directory maybe

bzr branch lp:project-rootstock-ng
cd project-rootstock-ng

get these (put them somewhere convenient, like in the project-rootstock-ng folder ):

( http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/current/ )

> utopic-preinstalled-boot-armhf+grouper.img 
> utopic-preinstalled-recovery-armel+grouper.img
> utopic-preinstalled-system-armel+grouper.img 
> utopic-preinstalled-touch-armhf.tar.gz

run on your host (I was using Makulu and also LMDE for this)

abootimg -u utopic-preinstalled-boot-armhf+grouper.img -c "cmdline=console=tty1 datapart=/dev/mmcblk0p10"

Then ran the following: (the img files were in the current directory)

adb reboot fastboot
fastboot flash recovery utopic-preinstalled-recovery-armel+grouper.img
fastboot flash boot utopic-preinstalled-boot-armhf+grouper.img

Then followed with

adb reboot recovery

after which the final install with (remember the bzr stuff at the beginning ?)

./rootstock-touch-install utopic-preinstalled-touch-armhf.tar.gz utopic-preinstalled-system-armel+grouper.img

Good luck - remember the last entry takes a very long time, do not (as I did, so many times) give up and reboot. Take a long lunch or something.

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