Generate cross compile toolchain in Gentoo

Gentoo crossdev

Table of Contents

• 1. Introcution
• 2. References

1. Introcution

Crosstool-ng is commonly used to build a cross-compiler toolchain in various Linux distributions. In Gentoo, the cross-compiler environment generator, crossdev, has been made for our convinience. It is a set of bash scripts that utilize emerge to provide a system integrated cross-compilation capability.

In this article, we are going to walk through building cross-compiler toolchain for an operating system and the embedded target (bare matel).

Emerge to install crossdev.

$ sudo emerge --ask sys-devel/crossdev

Install and run docker on gentoo linux

Table of Contents

• 1. Introduction
• 2. Installtion
• 3. Configuration
• 4. Usage
• 5. References

1 Introduction

Docker is a container virtualization environment that can establish development or runtime environments without modifying the host operating system. It is faster and lighter than full hardware virtualization.

This article will guide you through the steps required to install and run Docker on Gentoo Linux.

2 Installtion

The official sys-kernel/gentoo-kernel-bin package supports running Docker.

For the customized kernel, refer to Docker: Kernel to configure the proper kernel options.

Default USE flags can be utilized. It is recommended to read the messages for the package app-containers/docker when emerging Docker and recompile the kernel based on what is not set but should be.

To check the kernel configuration compatibility, run:

$ /usr/share/docker/contrib/check-config.sh

Install the app-containers/docker and app-containers/docker-cli packages.

$ sudo emerge --ask --verbose app-containers/docker app-containers/docker-cli