barnacleos/build

Tool used to create the BarnacleOS images. Based on pi-gen tool used to create the official raspberrypi.org Raspbian images.

Table of contents

• Dependencies
• Build
• Network interfaces
• System configuration

Dependencies

On Debian-based systems:

apt-get install bash quilt parted qemu-user-static debootstrap zerofree \
dosfstools libcap2-bin grep rsync

The file depends contains a list of tools needed. The format of this file is <tool>[:<debian-package>].

Build

Run sudo ./run ./build.sh to build the image. The following files will be created:

• rootfs/ - the root file system (/ and /boot/ partitions)
• deploy/BarnacleOS-YYYY-MM-DD.img - the image to write to SD card

Network interfaces

Some initial configuration may be required to use the default BarnacleOS image, such as Wi-Fi drivers installation. It can be done via SSH. Network interface eth0 has default configurations to help you to connect. It is configured by default to get IPv4 address from router via DHCP without any assumptions about subnet configuration. You can just plug your Raspberry Pi to router with Ethernet cable, discover which address was given to it in router's web interface or with nmap utility and connect to it via SSH.

System configuration

The following information can be helpful when you connect to BarnacleOS router and configure it:

• Root password is disabled
• User user has access via SSH with password password
• SSH host keys are generated at first startup, so fingerprint is different for each installation of the same image
• User has passwordless sudo