Custom Auto install proxmox with zfs and offline packages

jonnybravos123

New Member
Feb 9, 2026
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I must say this has been one of the most confusing things I have done this last month. How do i create an offline custom proxmox installation with offline packages where I install proxmox on nvme01n and then give an amount of disks raidz10 (zfs). Have people figured this out? Ai is hallucinating on this and I see alot of useless post on this matter. I do understand that it has its limits but I am soon done. It hasnt been an easy process and I have no idea if there is an official way doing this. But I am building an image with docker -> trixie. Then In same folder I will need post install script, packages and a build script where I use the proxmox 9 iso and also an answer toml script. In the answer toml I install proxmox on nvme. Then it builds the iso takes answer toml, packages and post install/first boot script. Then I am stuck here. if you have question regarding this setup please ask. I will answer you. Even though myself I am confused on how I made it work partly but it took alot of trial and error.
 
Hello.

I think offline is not a concern. The installer uses ISO packages.
Personally, I use the ability to fetch the toml configuration by an URL, very practical.
Did you read all the doc ? https://pve.proxmox.com/wiki/Automated_Installation
I have read it multiple times. I have some specific requirements. We do not want to use the url. It should be plug and play from an usb. We made it work with proxmox auto install fetch assistan using from-source. We used debians trixie as base for it to work with proxmox 9 . I must say it was alot of trial and error though. There aint many good guides on this.
 
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I have read it multiple times. I have some specific requirements. We do not want to use the url. It should be plug and play from an usb. We made it work with proxmox auto install fetch assistan using from-source. We used debians trixie as base for it to work with proxmox 9 . I must say it was alot of trial and error though. There aint many good guides on this.
Ok. Can you be more specific on your problem please ?