Release Note of Ubuntu 16.04 LTS (v2.3)

Release Note of Ubuntu 16.04 LTS (v2.3)

Summary

Release Date	2017-03-01
Release Type	Update

File name : ubuntu64-16.04.2lts-mate-odroid-c2-20170301.img.xz

Note: OS will reboot on the first boot for automatic rootfs resize

New updates

Official US West Coast: http://odroid.in/ubuntu_16.04lts
Official US East Coast: http://east.us.odroid.in/ubuntu_16.04lts (Thanks to David Beauchamp @ ArchLinuxARM)
Official EU Germany: http://de.eu.odroid.in/ubuntu_16.04lts
Official Korea Mirror: http://dn.odroid.com/S905/Ubuntu

Kernel Updates

GPIO Wakeup Feature Power Off and Wake Up using GPIO Key Button
GPIO Mem driver is implemented to support the Rootless GPIO access: /dev/gpiomem

U-Boot Updates

Display Auto Detection Display Auto Detection using EDID
GPIO Wakeup Feature Power Off and Wake Up using GPIO Key Button
New dvfs table scheme to support Mainline Kernel development

Userspace Update

Kodi to 17.0
libcec to 4.0
Ubuntu to 16.04.2

Tips and Known issues

mySQL/KVM needs an editing of boot.ini file to change the system timer source to ARMv8 Architecture from the Meson. But the ARMv8 timer affects the VPU/GPU system accuracy.
NTP time syncing takes long time (sometimes around 1~2 minutes)

GPU acceleration should be enabled manually. Add below line into /etc/chromium-browser/default file.

CHROMIUM_FLAGS=" --use-gl=egl --ignore-gpu-blacklist --disable-accelerated-2d-canvas --num-raster-threads=2"

The root file system will be resized in the first booting process. OS will reboot automatically to complete the resizing process. This process must not be interrupted.
To enable Auto-login, edit /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf file like this.
```
[Seat:*]
greeter-session=lightdm-gtk-greeter
autologin-user=odroid 
```

Reverting to Kodi 16.1

If Kodi 17 isn't working fine for you, you can revert to 16.1 with the following steps.
```
wget deb.odroid.in/old_kodi_c2/old_kodi.tar
tar xf old_kodi.tar
sudo dpkg -i *.deb
```

How to update the kernel and system

sudo apt update && sudo apt upgrade && sudo apt dist-upgrade && sudo apt install linux-image-c2

The default boot.ini in V2.3

Available here: https://github.com/mdrjr/c2_bootini/blob/master/boot.ini

How to checkout

The current version only provide Linux kernel and U-boot source code. Here are the instructions to checkout the source code and build. For more detail information, please visit U-boot and Kernel.

This guide is only for the NATIVE BUILD.

U-boot

$ git clone https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01
$ cd u-boot
$ make odroidc2_config
$ make

Linux Kernel

$ git clone --depth 1 https://github.com/hardkernel/linux -b odroidc2-3.14.y
$ cd linux
$ make odroidc2_defconfig
$ make -j5
$ sudo make modules_install
$ sudo cp arch/arm64/boot/Image /media/boot
$ sudo cp arch/arm64/boot/dts/meson64_odroidc2.dtb /media/boot

Run “git checkout jenkins-deb_s905_kernel-102” command to use the same kernel tag before “make odroidc2_defconfig”.

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