How to expand userdata partition on ODROID-XU3/4 by Gparted.

I want to expand userdata partition to install app more.

Check current partition information.

system partition   | /dev/sdx2 | 1GByte

userdata partition | /dev/sdx3 | 2GByte

cache partition     | /dev/sdx4 | 256Byte

fat partition          | /dev/sdx1 | All the rest

Remove cache and fat32 partition. If you modified boot.ini backup first.

Select userdata partition and resize. I will resize twice.

userdata parition : 4GByte.

Create new partition for fat like picture.
assign 256 for cache on 'Free space preceding (MiB):'

Create new partition for cache like picture.

Complete.

This also applies to ODROID-C1.

How to update ODROID-C2 Android in slow internet.

If you select 'Check online update', You must stay this activity until to finish download.

If you close ODROID Utility, You will fail to update.

Open browser and download updatepackage-odroidc2-eng-s905_5.1.1_master-xxx.zip

http://dn.odroid.com/S905/Android/ODROID-C2/updatepackage-odroidc2-eng-s905_5.1.1_master-202.zip

Run ODROID Utility and select menu 'Package install from storage.'

 Select 'File Manager'

Select 'Download/updatepackage-odroidc2-eng-s905_5.1.1_master-xxx.zip'

Wait a second and click 'Proceed'

dual booting android and Ubuntu on ODROID-C2

I made dual booting image for ODROID-U3.
http://codewalkerster.blogspot.kr/2014/03/dual-booting-android-and-ubuntu-on.html?m=1

We will make dual booting image for ODROID-C2.

Make bootable android media(eMMC or SD).

http://odroid.com/dokuwiki/doku.php?id=en:c2_release_android

Download ODROID-C2 Ubuntu Image.

http://odroid.com/dokuwiki/doku.php?id=en:c2_release_linux_ubuntu

Copy rootfs and boot partition of ODROID-C2 Ubuntu to your desktop Ubuntu.

- mount disk wrote ODROID-C2 ubuntu image on your desktop PC.

c2/ubuntu/ubuntu64-16.04lts-mate-od* on /media/codewalker/boot type vfat (ro,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks2)

c2/ubuntu/ubuntu64-16.04lts-mate-od* on /media/codewalker/rootfs type ext4 (ro,nosuid,nodev,uhelper=udisks2)

$ mkdir odroid-c2_ubuntu
$ cd odroid-c2_ubuntu

$ mkdir boot
$ sudo cp -a /media/username/boot/* boot/
$ mkdir rootfs
$ sudo cp -a /media/username/rootfs/* rootfs/

- unmount ubuntu disk.

Delete rootfs/aafirstboot

$ rm -rf rootfs/aafirstboot

Edit rootfs/etc/fstab

$ sudo vi rootfs/etc/fstab

LABEL=VFAT /media/boot vfat defaults,rw,owner,flush,umask=000 0 0

Chagne userdata partition UUID.

- Insert disk wrote android image on your desktop PC and unmount /dev/sdX4.

$ sudo umount /dev/sdX4

$ cat rootfs/etc/fstab 
LABEL=VFAT /media/boot vfat defaults,rw,owner,flush,umask=000 0 0

UUID=e139ce78-9841-40fe-8823-96a304a09859 / ext4 errors=remount-ro,noatime 0 1

$ sudo tune2fs /dev/sdX4 -U e139ce78-9841-40fe-8823-96a304a09859

Copy ODROID-C2 Ubuntu files to android disk.

$ mv /media/username/VFAT/boot. ini  /media/username/VFAT/boot. ini.android

$ cp boot/* /media/username/VFAT/

$ sudo cp rootfs/* /media/username/e139ce78-9841-40fe-8823-96a304a09859/ -a

$ sync

Make script to change OS.

in Ubuntu

$ vi boot_android.sh

------------------------------------------------------------------------

#!/bin/bash

sudo mv /media/boot/boot.ini /media/boot/boot.ini.ubuntu

sudo mv /media/boot/boot.ini.android /media/boot/boot.ini

sudo reboot
------------------------------------------------------------------------
#chmod +x boot_android.sh

in Adnroid

$ su

# mount -o rw,remount /

# vi /system/bin/boot_ubuntu.sh
------------------------------------------------------------------------

#!/bin/sh

mv /storage/internal/boot.ini /storage/internal/boot.ini.android

mv /storage/internal/boot.ini.ubuntu /storage/internal/boot.ini

reboot

------------------------------------------------------------------------
# chmod 777 /system/bin/boot_ubuntu.sh

How to install kodi v17.0(Krypton) for 4K on ODROID-C2

The kodi v16 Jarvis app has 4K video bugs.

Visit kodi site and download kodi v17.

Open CM FileManager and select Download folder.

Select and Install.

Enjoy 4K video without resolution resizing bug.

Google Play Store on ODROID-C2.

http://codewalkerster.blogspot.kr/2016/06/how-to-install-google-play-store-on.html

Visit http://dn.odroid.com/GAPPS and download GAppsInstaller_lollipop.apk

Install

Rebooted and log in google.

 Check Play store version.

If you Installed youtube app, You must update Google Play services too.

If you update Google Play service, You will go though this situation.
I do not have solution for that. You must reinstall android image.

Check Play store version like this. Play store will update automatically.

Fist Update Google Store and must update Google Play Services later.

Ctrl + Alt + Del doesn't reboot Android

echo 0 > /proc/sys/kernel/ctrl-alt-del

Or edit init.xxx.rc

 write /proc/sys/kernel/ctrl-alt-del 0

overscan for ODROID-C1 Ubuntu

1. search overscan values.

Read default values
root@odroid:~# cat /sys/class/graphics/fb0/window_axis
window axis is [100 100 1919 1079]
root@odroid:~#

Try to set overscan values
root@odroid:~# echo 100 100 1919 1079 > /sys/class/graphics/fb0/window_axis
root@odroid:~# echo 0x10001 > /sys/class/graphics/fb0/free_scale

2. make script(overscan.sh)

root@odroid:~# cat overscan.sh
#!/bin/bash

echo 100 100 1919 1079 > /sys/class/graphics/fb0/window_axis
echo 0x10001 > /sys/class/graphics/fb0/free_scale 
root@odroid:~#

3. Auto-start overscan shell script on Ubuntu.

root@odroid:~# cp overscan.sh /etc/init.d/
root@odroid:~# sudo update-rc.d overscan.sh defaults 


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