====== Release Note of Ubuntu 16.04 LTS (v2.1) =====
----
===== Summary =====
|| Release Date | 2017-02-20 ||
|| Release Type | Update ||

**File name : ubuntu-16.04.2-mate-odroid-c1-20170220.img**

===== 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/S805/Ubuntu]]


==== Kernel Updates ====
  * New gpiomem driver for rootless GPIO access
  * Add 480x800 resolution support
  * CPU Over clock option up to 1.8Ghz
  * Fixed LXC support
  * Updated USB Network Drivers
  * Updated Mali to r6p2

==== Userspace Update ====
  * Kodi updated to 17 (Special thanks to Oversun in our community forum)
  * Ubuntu 16.04.2 LTS
  * Updated Mali to r6p2
  * Updated Chromium to 55
  * Performance governor by default

===== How to improve the performance =====

  * Try 1.7Ghz or 1.8Ghz Overclock [[en:c1_overclocking|How to Overclock ODROID-C1]]
  * Check the CPU governor. <code>cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor</code> If it is not "performance", try <code>echo 'GOVERNOR="performance"' | sudo tee /etc/default/cpufrequtils</code> and reboot.


===== Known issues & notes =====
  * EXT2/4 file system can not be accessible on U-boot.
  * The root file system will be resized in the first booting process. OS will reboot automatically to complete the resizing process.
  * Kodi requires to be manually started for HDMI Passthrough work. <code>AE_SINK=ALSA kodi</code>
  * To enable Auto-login, edit **/usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf** file like this.  <code>[Seat:*]
greeter-session=lightdm-gtk-greeter
autologin-user=odroid </code>
  * Tons of issues not listed. :-x

===== Reverting to Kodi 16.1 =====
  * If Kodi 17 isn't working fine for you, you can revert to 16.1 with the following steps. <code>sudo apt-get remove kodi kodi-bin kodi-data
wget deb.odroid.in/old_kodi_c1/old_kodi.tar
tar xf old_kodi.tar
sudo dpkg -i *.deb</code>


===== LIRC Support =====
  * [[en:c1_lirc|Suppport Custom Remote Controller]]

===== How to Upgrade. Don't forget dist-upgrade =====
  * <code>sudo apt update && sudo apt upgrade && sudo apt dist-upgrade </code>
  * <code>sudo apt install linux-image-c1</code>

===== The default boot.ini in V2.1 =====
  * Available here: https://github.com/mdrjr/c1_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 [[en:c1_building_u-boot|U-boot]] and [[en:c1_building_kernel|Kernel]].

**This guide is only for the NATIVE BUILD.**
==== U-boot ====
<code>
$ git clone https://github.com/hardkernel/u-boot.git -b odroidc-v2011.03
$ cd u-boot
$ make odroidc_config
$ make
</code>
==== Linux Kernel ====
<code>
$ git clone --depth 1 https://github.com/hardkernel/linux -b odroidc-3.10.y
$ cd linux
$ make odroidc_defconfig
$ make uImage modules
$ make dtbs
$ sudo make modules_install
$ sudo cp arch/arm/boot/uImage /media/boot
$ sudo cp arch/arm/boot/dts/meson8b_odroidc.dtb /media/boot
</code>