====== Autoinstall / Cloud-init ======
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===== Create custom ISO =====

Download the ISO at [[https://releases.ubuntu.com/releases/jammy/|Ubuntu 22.04.3 LTS (Jammy Jellyfish)]]
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Create a new folder for your custom ISO\\
<code>mkdir ~/customISO</code>
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Mount the CD to /mnt\\
<code>mount -o loop /path/to/ubuntu.iso /mnt</code>
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Copy the CD to your custom ISO folder\\
<code>cp -r /mnt/* ~/customISO/.</code>
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Create an autoinstall folder\\
<code>mkdir ~/customISO/autoinstall</code>
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Create your user-data file\\
<code>vi ~/customISO/autoinstall/</code>
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You can either create a fresh file (see [[https://ubuntu.com/server/docs/install/autoinstall-reference|Automated Server installer config file reference]] for help) or if you already installed a system manually, you can use the same config and modify it. Its located at "/var/log/installer/autoinstall-user-data"
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The meta-data doesnt need any content, just create it
<code>touch ~/customISO/autoinstall/meta-data</code>
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Create a new bootmenu entry above all others\\
Make sure to match your name with "autoinstall", "/cdrom" serves a rootdir and "autoinstall" is the directory containing your user-data file
<code>vi ~/customISO/boot/grub/grub.cfg

menuentry "Autoinstall Ubuntu Server" {
    set gfxpayload=keep
    linux   /casper/vmlinuz quiet autoinstall ds=nocloud\;s=/cdrom/autoinstall/  ---
    initrd  /casper/initrd
}
</code>
It should look like this:\\
{{:linux:ubuntu:pasted:20230910-042102.png}}
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FIXME
==== Sources ====

[[https://ubuntu.com/server/docs/install/autoinstall-reference|Automated Server installer config file reference]]\\
[[https://ubuntu.com/server/docs/install/autoinstall|Automated Server installation - Introduction]]\\
[[https://ubuntu.com/server/docs/install/autoinstall-quickstart|Automated Server install quickstart]]\\
[[https://www.pugetsystems.com/labs/hpc/ubuntu-22-04-server-autoinstall-iso/|Ubuntu 22.04 Server Autoinstall ISO]]\\