ubuntu-preseed-image-builder

Requirements

• Ubuntu 16.04.3 ISO Image

Dependencies

• Docker

Usage

Creating a custom image

1. Clone this repository

$ git clone git@github.com:lightnet328/ubuntu-preseed-image-builder.git

2. Change current directory

$ cd ubuntu-preseed-image-builder

3. Download Ubuntu 16.04.3 ISO Image

$ wget http://old-releases.ubuntu.com/releases/xenial/ubuntu-16.04.3-server-amd64.iso

4. Copy env files

$ cp env.example.yml env.yml
$ cp env.secret.example.yml env.secret.yml

env.secret.yml overrides values in env.yml.

5. Build a image builder

$ docker build -t uibuild .

6. Build a custom image

$ docker run --rm --privileged -v $PWD:/builder uibuild build --suffix custom

The following is the same as above.

$ docker run --rm --privileged -v $PWD:/builder uibuild build --config env.yml --secret env.secret.yml --suffix custom

Creating a live usb

macOS

2. Check the disk to write a custom image

$ diskutil list

3. Initialize $DISK and write a custom image

Warning:

The following command erases the contents of the disk. (In this case /dev/disk2 will be erased)

Please check whether there is any mistake.

$ DISK=disk2
$ diskutil list
$ diskutil eraseDisk MS-DOS UNTITLED /dev/$DISK
$ diskutil unmountDisk /dev/$DISK
$ sudo dd if=ubuntu-16.04.3-server-amd64-custom.iso of=/dev/r$DISK bs=1m