How to make a custom ISO image: Difference between revisions

Revision as of 01:57, 27 May 2010

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: (opional) 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. You should always add alpine-base in there or the CD migh 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 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

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

@@ Line 44: / Line 44: @@
   ntfs-3g
-We prepare for the iso by fetching our apks:
+Make sure the apk index is up to date (so apk finds the packages):
-{{Cmd|<nowiki>apk update
+{{Cmd|apk update}}
-make PROFILE=alpine-rescue</nowiki>}}
-Finally we build the iso and generate the sha1 sum:
+We create the ISO image by telling the makefile the profile name. The makefile target is ''iso''.
+{{Cmd|<nowiki>make PROFILE=alpine-rescue iso</nowiki>}}
+To generate the sha1 sum we use the ''sha1'' make target.
 {{Cmd|<nowiki>make PROFILE=alpine-rescue sha1</nowiki>}}