install_linux_kernel.sh

#!/bin/bash

set -x
# update package info
sudo apt-get update

# download kernel
KERNEL_VERSION="4.15.1"
LINUX_KERNEL=linux-${KERNEL_VERSION}
LINUX_KERNEL_TAR=${LINUX_KERNEL}.tar.gz
# ~151M
wget https://cdn.kernel.org/pub/linux/kernel/v4.x/${LINUX_KERNEL_TAR}
tar zxvf ${LINUX_KERNEL_TAR}
sudo mv ${LINUX_KERNEL}/ /usr/src/
# delete tar
rm ${LINUX_KERNEL_TAR}

# install dependencies
sudo apt-get install -y fakeroot build-essential libncurses5-dev kernel-package openssl bison flex libssl-dev

# create 2G swap
sudo dd if=/dev/zero of=/swapfile bs=1k count=2048000
sudo mkswap /swapfile
sudo swapon /swapfile
IFS=' ' read -r -a MEMORY_SPACE <<< "$(free -t | grep Total)"
if [ ${MEMORY_SPACE[-1]} -lt 2048000 ]; then
  echo -e "NOTICE: The Total Memory is less than 2G, the kernel compilation process might fail!"
fi

# make kernel
cd /usr/src/${LINUX_KERNEL}
sudo cp /boot/config-$(uname -r) .config
# configure kernel
sudo make oldconfig
sudo make menuconfig
# create file to prevent from `cannot state 'REPORTING-BUGS' error`
sudo touch REPORTING-BUGS
# at least 30G space
#time sudo fakeroot make-kpkg -j16 --initrd --revision "0.0.custom" --append-to-version -$(date +%s) kernel_image kernel_headers
# this will reduce 14G disk space
#sudo make-kpkg clean
# install kernel
#sudo dpkg -i linux-image ...
#sudo dpkg -i linux-header ...

# reboot
#sudo reboot

#cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev

set +x

remove_old_kernel.sh

#!/bin/bash

# you can download this script by typing the following command:
# wget https://ppt.cc/fbnhvx -O remove_kernel.sh

sudo apt-get remove $(dpkg -l | egrep '^ii  linux-(im|he)' | awk '{print $2}' | grep -v `uname -r`)

run_mnist.sh

#!/bin/bash
set -x
# https://ppt.cc/fxkHjx

# install tensorflow & run mnist example
# NOTICE: you need totally at least 1024M memory (or swap) for installing TensorFlow,
# otherwise, MemoryError will be raised
sudo apt-get install -y python3-pip
sudo pip3 install --upgrade setuptools

sudo pip3 install tensorflow
wget https://gist.githubusercontent.com/Ending2015a/c0c5e44b430e24056e96ec96794389cf/raw/a8194be52cb9f0539140283b0e5abbb8e8b8906c/mnist.py -O ~/mnist.py
python3 mnist.py

set +x