Install LuneOS for Grouper
This guide will walk you through the process of taking the Nexus 7 (Wi-Fi, 2012 version) from stock to having ability to flash the latest version of LuneOS.
Note: DISCLAIMER
Rules that you must agree to before using these images
Before you use our testing feeds, please read and agree to the following rules:
- Anyone participating in WebOS Ports alpha or beta testing of any kind must be prepared to fully erase and reflash their device at a moment's notice without warning and without any regrets or complaints.
- They must be prepared to and able to log into the command line on the device and type Linux commands when instructed to do so. If you are not intimately familiar with linux GO NO FURTHER
- They must be prepared to go to great and extraordinary lengths to try and reliably reproduce any problems they encounter.
- They must give full and detailed bug reports, leaving out no piece of information which could possibly be remotely connected to the problem.
- They must read any and all documentation and forums threads (in their entirety) before asking a question.
- They must fastidiously follow the IRC Channel where the alpha testing is being discussed by the authors, and follow precisely any instructions given there.
- They will never post the raw testing feed URLs or instructions anywhere, but will always refer others directly to this page using only the URL http://testing-{{{device_name}}}.webos-ports.org
- When asking for help, they will include the phrase (which may change occasionally) "I've read and understand the rules". Failure to include the phrase will result in the request for help being silently ignored.
If you're not prepared to do *all* the above, and do it all in good spirit, then please wait for the public release of the item.
If you are prepared to do *all* the above, then by all means please participate in the alpha or beta testing.
Note that everything above is a function of attitude, not of skill. These images do NOT constitute a ROM, They are individual pieces and NOT intended or expected to be included in any ROM
Important Notes
The first tablet from Google, the Nexus 7 is unlockable by the user and is available in 16GB and 32GB sizes (previously, there was also a 8GB version available). The price of $199 for the smallest variant was a big advantage, also having the strong NVIDA Tegra 3 quad-core processor and the 416 MHz twelve-core GPU in mind.Please note that you need to have Android 4.2.2 (exactly) on your Nexus 7 in order to be able to use LuneOS ! The image can be downloaded from https://developers.google.com/android/nexus/images
Unlocking the device (bootloader)
First, the bootloader must be unlocked.
- Download and install the Android SDK for your platform from here: Android SDK
- Open a Terminal and:
cd to <sdk>/tools/
- Run:
./android
to start the Android SDK Manager - Use it to install the latest version of 'Android SDK Platform-tools'
- Close the Android SDK Manager
- In your Terminal window,:
cd to <sdk>/platform-tools/
- Power off the Nexus 7 (Wi-Fi, 2012 version) and activate the bootloader (Hold Volume Up, Volume Down, & the Power button. Continue to hold all three until the screen flashes, then release all buttons.)
- Connect it via USB
- In your Terminal window, run:
./fastboot devices
- If your device shows up, proceed to the next step. Otherwise, follow the instructions in this thread
- In your Terminal window, run:
./fastboot oem unlock
- A warning will appear on your Nexus 7 (Wi-Fi, 2012 version), prompting you to unlock your bootloader.
- Use the Volume Up and Volume Down buttons to navigate and the Power button to confirm your selection.
- Reboot Device
Installing recovery using fastboot
You can use fastboot to install your recovery image to the device.
Installing ClockworkMod Recovery on the Nexus 7 (Wi-Fi, 2012 version)
- Your Nexus 7 (Wi-Fi, 2012 version) should still be connected to your PC via USB from the last step
- Power off the Nexus 7 (Wi-Fi, 2012 version) and activate the bootloader Hold Volume Up, Volume Down, & the Power button. Continue to hold all three until the screen flashes, then release all buttons.
- Once the device is in fastboot mode, verify your PC sees the device by typing
fastboot devices
- *If you don't see your device serial number, and instead see "<waiting for device>", fastboot is not configured properly on your machine. See fastboot documentation for more info.
- On your PC, download the [ ClockworkMod] Nexus 7 (Wi-Fi, 2012 version) recovery image (at time of writing, )
- Flash CWM to your Nexus 7 (Wi-Fi, 2012 version), making sure to use the proper filename for the image you downloaded:
$ fastboot flash recovery recovery-clockworkmod--grouper.img
sending 'recovery' (6526 KB)...
OKAY [ 0.802s]
writing 'recovery'...
OKAY [ 1.245s]
finished. total time: 2.048s
$ fastboot reboot
rebooting...
finished. total time: 0.020s
- Reboot to bootloader, by powering off, then Hold Volume Up, Volume Down, & the Power button. Continue to hold all three until the screen flashes, then release all buttons.
- Use the Volume Up or Volume Down key to select "Recovery mode", and the Power button to enter recovery.
- At this point, ClockworkMod should load.
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