title: “ordoid cgroub pids”
date: 2021-01-04T20:58:00
slug: ordoid-cgroub-pids

This guide is only for the NATIVE BUILD. Run it on the board.

Installing building tools

You may need to install the building tools.

$ sudo apt-get install git gcc g++ build-essential libssl-dev bc flex bison

Download and build the kernel source

Updating Kernel and DTB (Device Tree Blob)

Please note that native kernel compile on ODROID-XU4 will take about 25 minutes.

$ git clone --depth 1 https://github.com/hardkernel/linux -b odroidxu4-4.14.y
$ cd linux
$ make odroidxu4\_defconfig
!! changed the .config and enabled CGROUP\_PIDS by adding CONFIG\_CGROUP\_PIDS=y
$ make -j8
$ sudo make modules\_install
$ sudo cp -f arch/arm/boot/zImage /media/boot
$ sudo cp -f arch/arm/boot/dts/exynos5422-odroid\*dtb /media/boot
$ sync

Updating root ramdisk (Optional)

$ 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
$ sync

Before you start with new Linux kernel v4.14

You would check all necessary files are in place as below before reboot. The file size would differ.

$ ls -l /media/boot/
total 14756
-rwxr-xr-x 1 root root 9536 Oct 25 23:29 boot.ini
-rwxr-xr-x 1 root root 753 Aug 20 22:38 boot.ini.default
-rwxr-xr-x 1 root root 62565 Nov 2 01:24 exynos5422-odroidxu3.dtb
-rwxr-xr-x 1 root root 61814 Nov 2 01:24 exynos5422-odroidxu3-lite.dtb
-rwxr-xr-x 1 root root 62225 Nov 2 01:24 exynos5422-odroidxu4.dtb
-rwxr-xr-x 1 root root 61714 Oct 25 23:30 exynos5422-odroidxu4-kvm.dtb
-rwxr-xr-x 1 root root 9996513 Nov 2 01:27 uInitrd
-rwxr-xr-x 1 root root 4844744 Nov 2 01:24 zImage

$ sudo sync
$ sudo reboot