Rætro Linux Kernel

Linux kernel release 5.x http://kernel.org/

What is Linux?

Linux is a clone of the operating system Unix, written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX and Single UNIX Specification compliance.

It has all the features you would expect in a modern fully-fledged Unix, including true multitasking, virtual memory, shared libraries, demand loading, shared copy-on-write executables, proper memory management, and multi-stack networking including IPv4 and IPv6.

On what hardware does it run?

Manufacturer	Hardware	Platform	Project	Config	Device Tree Blob
Terasic	DE10-Nano	ARM/FPGA	MiSTer	MiSTer_defconfig	socfpga_cyclone5_de10_nano.dtb
Arrow/NovTech	Chameleon96	ARM/FPGA	9SiXSTer	9SiXSTer_defconfig	socfpga_cyclone5_chameleon96.dtb

Requirements to Compile

On Debian/Ubuntu

apt-get update
apt-get -y upgrade
apt-get -y install build-essential bc liblz4-tool device-tree-compiler wget libncurses5-dev libncursesw5-dev bison flex libssl-dev

ARM GCC Compiler

cd /opt
wget -O - https://releases.linaro.org/components/toolchain/binaries/latest-7/arm-linux-gnueabihf/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf.tar.xz | tar xJf -
export ARCH arm
export CROSS_COMPILE /opt/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-

Kernel Download and Configuration

wget -O - https://github.com/Raetro/linux_Raetro/archive/master.tar.xz | tar xJf -

Loading

make clean mrproper <project_defconfig>

Configure Kernel (Optional)

make menuconfig

Compiling the Kernel and Creating zImage with Device Tree Blob

make zImage modules dtbs
cat arch/arm/boot/zImage arch/arm/boot/dts/<project_device_tree_blob> > zImage_dtb