From Fedora Project Wiki

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{{Admon/tip || Assurez-vous d'installer  '''kvm''' et '''qemu''' en tant que super utilisateur pour les versions antérieures à Fedora 11. Fedora 11 a fusionné kvm et qemu en un seul paquet. L'installation de quemu suffit. }}
 
{{Admon/tip || Assurez-vous d'installer  '''kvm''' et '''qemu''' en tant que super utilisateur pour les versions antérieures à Fedora 11. Fedora 11 a fusionné kvm et qemu en un seul paquet. L'installation de quemu suffit. }}
  
== Using your new live image ==
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== Utilisation de votre nouvelle image live ==
  
You can [http://docs.fedoraproject.org/readme-burning-isos/ burn your image directly to a CD or a DVD] if it fits, or you can [[How_to_create_and_use_Live_USB | write it to a USB stick]].
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Vous pouvez [http://docs.fedoraproject.org/readme-burning-isos/ graver votre image directement sur un CD ou un DVD] si elle peut s'y loger, ou vous pouvez [[How_to_create_and_use_Live_USB | l'écrire sur un média USB]].
  
{{admon/install | Installing the Live image to the hard drive | As of Fedora 7, anaconda has support for doing an installation from a live imageTo use this, double click on the ''Install to Hard Drive'' item on the desktop or run
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{{admon/install | Installation de l'image live sur disque dur| Depuis  Fedora 7, Anaconda prend en charge l'installation à partir d'une image live.  Pour le faire, double cliquez sur l'item ''Install to Hard Drive'' item sur le bureau ou exécutez dans un terminal  :
  
 
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if you don't have such an icon. However, because of the way {{command|livecd-creator}} works, it is not possible to choose a different set of packages or a different filesystem during installation.}}
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si un tel item n'apparaît pas sur le bureau. Cependant, à cause de la manière {{command|livecd-creator}} fonctionne, il n'est pas possible de choisir un jeu de paquets différents ou un système de fichiers différent lors de l'installation.}}
  
 
== Live Image Media Verification ==
 
== Live Image Media Verification ==

Revision as of 05:10, 3 April 2016


This page explains how to make a custom-content Live CD or DVD on Fedora-based systems including derived distributions such as RHEL, CentOS and others.

Note.png
Note
If you simply want to burn a pre-made ISO to a disc, visit http://fedoraproject.org/en/get-fedora to download a LiveCD or LiveDVD, then see the install guide or burning how-to for further instructions.

Getting started

To create a live image, the livecd-creator tool is used. Super user privileges are needed. The tool is more or less self-documenting, use livecd-creator --help to see options.

The livecd-creator tool is part of the livecd-tools package. If it is not installed on your system, add it with DNF or YUM:

su -c 'yum install livecd-tools spin-kickstarts' #Versions prior to Fedora 22
                                 or
su -c 'dnf install livecd-tools spin-kickstarts' #Fedora 22 and beyond            

If you are interested in localized (i.e. translated into other languages) live CD files, install also l10n-kickstarts.

Configuring the image

The configuration of the live image is defined by a file called kickstart. It can include some basic system configuration items, the package manifest and a script to be run at the end of the build process.

For the Fedora project, the most important live image configurations files are:

  • fedora-live-base.ks : The base live image system (included in the 'livecd-tools' package).
  • For Fedora 20 and earlier: fedora-livecd-desktop.ks : Complete desktop with applications and input/output support for all supported locales in Fedora (this one is part of the 'spin-kickstarts' package) - despite the name, this is the kickstart that generates the ~1GB-sized images for recent releases.
  • For Fedora 21 and later: fedora-live-workstation.ks - this is the Workstation product configuration.

kickstart files for other spins (e.g. Fedora Electronics Lab) can be found in /usr/share/spin-kickstarts/ after installing the 'spin-kickstarts' package. These pre-made configuration files can be a great place to start, as they already have some useful pre and post-installation scripts.

system-config-kickstart

You can create a customized kickstart file by running system-config-kickstart. Note that you might have to install the package first with su -c "dnf install system-config-kickstart" in Fedora 22 and beyond or su -c "yum install system-config-kickstart" in earlier versions of Fedora. This tool is mainly intended for generating kickstart files for automated installs, not live images, so the output will probably not be usable without editing, but it may help you to generate particular kickstart directives. Remember to add the line:

%include /usr/share/spin-kickstarts/fedora-live-base.ks

at the beginning of your kickstart file to include the base live configuration.

Idea.png
See Creating a kickstart file for advanced information regarding making your own custom kickstart file.

Making the image

To make the image, simply issue the following command:

livecd-creator --verbose \
--config=/path/to/kickstart/file.ks \
--fslabel=Image-Label \
--cache =/var/cache/live

The name given by --fs-label is used:

  • as a file system label on the ext3 and iso9660 file systems (As such, it's visible on the desktop as the CD name).
  • in the isolinux boot loader.

If you have the repositories available locally and don't want to wait for the download of packages, just substitute the URLs listed in the configuration file to point to your local repositories.

Note.png
Making a 32-bit spin ISO on a 64-bit machine
If you have an x86_64 machine you're building on but you want a 32-bit happy iso image, add the following before your livecd-creator command:
setarch i686 livecd-creator [...]

Examples

Spinning the fedora desktop

The following command:

livecd-creator --verbose \
--config=/usr/share/spin-kickstarts/fedora-live-workstation.ks \
--fslabel=Fedora-LiveCD \
--cache=/var/cache/live

will create a live CD called "Fedora-LiveCD" using the fedora-live-workstation.ks configuration file.

Un CD live dépouillé

La commande

livecd-creator --verbose \
--config=/usr/share/doc/livecd-tools-`rpm -q livecd-tools --qf "%{VERSION}"`/livecd-fedora-minimal.ks \
--cache=/var/cache/live

crée un CD live qui démarre et affiche une invite de connexion.

Idea.png
Le CD live dépouillé ne prend pas en charge la connexion.
Comme aucune configuration n'a encore été faite, l'utilisateur ne peut pas se connecter au système puisque le mot de passe root n'est pas défini/remis à une chaîne vide.

Test de votre CD live avec KVM ou qemu

QEMU running Fedora 17

En tant que super utilisateur :

qemu-kvm -m 2048 -vga qxl -cdrom filename.iso

Si vous ne disposez pas de la prise en charge de KVM, vous devez utiliser qemu à la place.

qemu-system-x86_64 -m 2048 -vga qxl -cdrom filename.iso

Remplacez filename.iso par le nom de l'image du CD live et qemu-system-x86_64 par un binaire qemu approprié pour le système cible, p. ex. qemu-system-i386.

Idea.png
Assurez-vous d'installer kvm et qemu en tant que super utilisateur pour les versions antérieures à Fedora 11. Fedora 11 a fusionné kvm et qemu en un seul paquet. L'installation de quemu suffit.

Utilisation de votre nouvelle image live

Vous pouvez graver votre image directement sur un CD ou un DVD si elle peut s'y loger, ou vous pouvez l'écrire sur un média USB.

Install icon.jpg
Installation de l'image live sur disque dur
Depuis Fedora 7, Anaconda prend en charge l'installation à partir d'une image live. Pour le faire, double cliquez sur l'item Install to Hard Drive item sur le bureau ou exécutez dans un terminal  :
/usr/bin/liveinst
si un tel item n'apparaît pas sur le bureau. Cependant, à cause de la manière livecd-creator fonctionne, il n'est pas possible de choisir un jeu de paquets différents ou un système de fichiers différent lors de l'installation.

Live Image Media Verification

The live image can incorporate functionality to verify itself. To do so, you need to have isomd5sum installed both on the system used for creating the image and installed into the image. This is so that the implantisomd5 and checkisomd5 utilities can be used. These utilities take advantage of embedding an md5sum into the application area of the iso9660 image. This then gets verified before mounting the real root filesystem.

Other Resources