====== Release Note of Ubuntu 16.04 LTS (v2.0) =====
----
===== Summary =====
|| Release Date | 2017-05-10 ||
|| Release Type | Test ||

File name : ubuntu-16.04.2-mate-odroid-**<color #ed1c24>xu4</color>**-20170510.img.xz


//**XU3 OS image is fully compatible with XU4.**//
===== Download from below servers =====
  * 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/5422/ODROID-XU3/Ubuntu/]]

===== New features =====
  * Linux Kernel LTS 4.9.27 
  * Ubuntu 16.04.2
  * Updated Mali GPU driver to the latest **r17p0**

<WRAP center round important>
  The RootFS Auto-resize feature has changed!!! 
  Once everything is done after auto-reboot, the power will turn off. Wait a couple of minutes.
  Please press the power button if the blue LED is off.
</WRAP>

===== Known issues and tips=====
  * Tons of issues undocumented. :-x
  * To enable Auto-login, edit /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf file like this.
  * <code>
[SeatDefaults]
greeter-session=lightdm-gtk-greeter
autologin-user=odroid</code>

  * Kodi and Gsteamer playback is sluggish when we play 1080p video clips. Slow GLsink rendering seems to be a root cause even MFC HW decoder works fine.
  * Some UASP capable USB-to-SATA bridge controllers are not compatible. If your external HDD is not working properly, add its VID/PID in boot.ini [[https://github.com/mdrjr/5422_bootini/blob/4.9/boot.ini#L162|Boot arguments]] to disable the UAS function something like this.
  * <code>usb-storage.quirks=0x0bc2:0x2322:u</code>
   
===== Access Credentials =====
|| Username || Password ||
|| root || odroid || 
|| odroid || odroid ||

 

===== How to Update system and kernel software. Don't forget dist-upgrade =====
  sudo apt update
  sudo apt upgrade
  sudo apt dist-upgrade
  sudo apt install linux-image-xu3 
  sudo reboot

===== Linux Kernel =====
**This guide is only for the NATIVE BUILD.**  Run it on the board.

For Kernel and DTB
<code>
$ git clone --depth 1 https://github.com/hardkernel/linux -b odroidxu4-4.9.y
$ cd linux
$ make odroidxu3_defconfig
$ make -j9
$ sudo make modules_install
$ sudo cp -f arch/arm/boot/zImage /media/boot
$ sudo cp -f arch/arm/boot/dts/exynos5422-odroidxu3.dtb /media/boot
$ sudo cp -f arch/arm/boot/dts/exynos5422-odroidxu4.dtb /media/boot
$ sudo cp -f arch/arm/boot/dts/exynos5422-odroidxu3-lite.dtb /media/boot
</code>

For RAMDISK (Optional)
<code>
sudo cp .config /boot/config-`make kernelrelease`
sudo update-initramfs -c -k `make kernelrelease`
sudo mkimage -A arm -O linux -T ramdisk -C none -a 0 -e 0 -n uInitrd -d /boot/initrd.img-`make kernelrelease` /boot/uInitrd-`make kernelrelease`
sudo cp /boot/uInitrd-`make kernelrelease` /media/boot/uInitrd
</code>