Rock/dual boot

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Dual boot NAND

The pre-built dual boot image for NAND flash can be found here:

   http://dl.radxa.com/rock/images/dual_boot/

Download it and follow the rock/flash_the_image to flash it.

Dual boot with uSD card/UDisk/USB HDD

If you want to dual boot with a uSD card/UDisk/USB HDD with the following:

1. Use the entire NAND for Android
2. Use a uSD/UDisk/USB HDD to install Lubuntu
3. Dual boot

Here is the steps to archive it:

1. Download the pure android http://dl.radxa.com/rock/images/android/2014-03-06/140306_android.tgz and flash it.
2. Download the parameter for uSD card for Udisk or USB HDD and flash it to "parameter" partition.
3. Download http://dl.radxa.com/rock/images/ubuntu/2014-03-08/boot-linux.img and flash it to "recovery"(yes, recovery) partition.
4. Download the rootfs from http://dl.radxa.com/rock/images/ubuntu/2014-03-08/rootfs-desktop.img and write it to the first partition of SD card/Udisk/USB HDD.
5. Download and install the app for android http://dl.radxa.com/rock/images/android/BootUbuntu.apk to boot from Android to linux.