How to make a custom ISO image: Difference between revisions

Revision as of 12:20, 25 July 2011

This document explains how to build a custom ISO image using the alpine-iso scripts.

First make sure we have the needed tools

apk add alpine-sdk

Then we clone (or update) the alpine-iso git repository.

git clone git://git.alpinelinux.org/alpine-iso

The alpine-iso scripts is a simple makefile which you need to feed with a <name>.conf.mk file and a <name>.packages.

In the <name>.conf.mk we specify

ALPINE_NAME: name of iso image

ALPINE_VERSION: (optional) version string. Will default to todays date.

KERNEL_FLAVOR: (optional) either grsec, vserver or pae. Will default to grsec.

MODLOOP_EXTRA: (optional) Extra kernel module packages for the modloop image. For example: dahdi-linux-vserver

The <name>.packages is just a plaintext list of packages that should be included in the ISO image. You should always add alpine-base in there or the CD might not be able to boot. The dependencies for the packages will automatically be pulled in.

A rescue CD example

As an example, let us make a rescue ISO image with packages needed for rescue operations. We call it alpine-rescue

We create the alpine-rescue.conf.mk as follows:

ALPINE_NAME   := alpine-rescue
KERNEL_FLAVOR := grsec
MODLOOP_EXTRA :=

And then the alpine-rescue.packages as:

alpine-base
bkeymaps
openssh
e2fsprogs
mdadm
lvm2
parted
debootstrap
ntfs-3g

Tip: If you have home-built APKs that you would like to include in the ISO image you are about to create:

Make sure your developer keys are placed in /etc/apk/keys/

Learn apk-tools to find your home-built apk's:

echo "~/.cache/apks" >> /etc/apk/repositories

Make sure the apk index is up to date (so apk finds the packages):

apk update

We create the ISO image by telling the makefile the profile name. The makefile target is iso.

make PROFILE=alpine-rescue iso

To generate the sha1 sum we use the sha1 make target.

make PROFILE=alpine-rescue sha1

Package lists

Beside the plaintext package lists in the git repository, there are more documented package lists contributed by Alpine users. Those lists can be transformed into a plaintext to use with alpine-iso list with the simple python-based config-builder.py script.

So far the lists below are available:

Testing your ISO image

Qemu is useful for a quick test of your created ISO image.

@@ Line 61: / Line 61: @@
 == Package lists ==
+Beside the plaintext package lists in the git repository, there are more documented package lists contributed by Alpine users. Those lists can be transformed into a plaintext to use with <tt>alpine-iso</tt> list with the simple python-based <tt>[http://git.alpinelinux.org/cgit/alpine-iso.git/tree/config-builder.py config-builder.py]</tt> script.
+So far the lists below are available:
 * [[Alpine_mini|Alpine Mini]]
 * [[Alpine_rescue|Alpine Rescue]]