oleid / chrubuntu-tegra

CUDA for Chromebooks with APC branding

##Install APC-branded Chrubuntu on Acer Chromebook CB5-311 for on-site CUDA trainings

Based on work of arm000 found here

Instructions

1. Turn chromebook into developer mode:

sudo chromeos-firmwareupdate --mode=todev

2. Switch to developer terminal by pressing "Alt + Left Arrow", login as chronos

3. Download and execute the Chrubuntu installation script

wget https://goo.gl/i6ZjBV -O chrubuntu-tegra.sh
sudo bash ./chrubuntu-tegra.sh default lts

4. Redownload and re-run Chrubuntu instllation script after reboot

wget https://goo.gl/i6ZjBV -O chrubuntu-tegra.sh
sudo bash ./chrubuntu-tegra.sh default lts

5. After successfully entering Chrubuntu, reboot into ChromeOS and set Chrubuntu as permanent primary boot option:

sudo cgpt add -i 6 -P 5 -S 1

To switch back the primary boot option to ChromeOS while in ChrUbuntu:

sudo apt-get install cgpt
sudo cgpt add -i 6 -P 0 -S 1 /dev/mmcblk0

In many other guides the device name is /dev/sda, however it's only valid if booted into Chrome OS. ChrUbuntu's device name (mmcblk0 in our case) may be different and could be figured out from gparted output:

sudo apt-get install gparted
gparted

6. Downgrade Chrubuntu Linux kernel, as CUDA support has been removed from actual one (only basic samples can work, e.g. deviceQuery)

./cuda-kernel-fix.sh