How to use d-i and preseeding on 22.04

aseq

8/14/23, 5:05 AM

I am trying to set up an automated installation environment for ubuntu 22.04. We have this already working in production for 20.04 and previous LTS releases for many years. We use pxe/isolinux and a tftp and dhcp server to perform the network and cd boot. And some trickery to get uefi working.

I am unable to find working vmlinuz and initrd images which allow me to start an automated ubuntu 22.04 installation using preseeding and the debian installer (d-i).

I use the following to install 20.04, this does not work on 22.04:

linuxefi /path/to/2004/amd64/linux auto=true priority=critical url=http://example.com/ubuntu/2004/amd64/seed_ub_uefi.cfg console-setup/layoutcode=us interface=auto
initrdefi /path/to/2004/amd64/initrd.gz

I have tried extracting the vmlinuz and initrd.gz images from 22.04 ubuntu CD iso images. However no matter what I try it even fails to find a root filesystem. I am guessing the images do not have d-i and preseed functionality built in anymore?

If such images don't exist how would I go about creating my own? I don't feel too happy migrating to whatever automated installation method canonical wants to enforce. Our whole infrastructure is based on the previously mentioned method and we install multiple OSes in a similar way.

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Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to use d-i and preseeding on 22.04

TH: วิธีใช้ d-i และ preseeding ใน 22.04

RO: Cum se utilizează d-i și preseeding pe 22.04

RU: Как использовать d-i и предварительную раздачу 22.04

VI: Cách sử dụng d-i và chèn sẵn vào ngày 22.04

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