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Debian 12 Packer image on Proxmox keeps on waiting for auto configuration network

I'm struggling a bit to make Packer works on my Proxmox Hypervisor to create a VM template.

I keep on getting hit by the "network autoconfiguration failed" even if my preseed.cfg mentionned to disable the network autoconfig.

It seems like the setup in my preseed.cfg isn't used. I've setup a fix ip address, but it's keep on hiting this prompt...

[![Screenshot of Debian 12 prompting "Network autoconfiguration failed"][1]][1]

Here are my files:

## debian12.pkrvars.hcl:

```
// debian12.pkr.hcl

packer {
required_plugins {
name = {
version = "1.1.6"
source = "github.com/hashicorp/proxmox"
}
}
}

variable "bios_type" {
type = string
}

variable "boot_command" {
type = string
}

variable "boot_wait" {
type = string
}

variable "bridge_firewall" {
type = bool
default = false
}

variable "bridge_name" {
type = string
}

variable "cloud_init" {
type = bool
}

variable "iso_file" {
type = string
}

variable "iso_storage_pool" {
type = string
default = "local"
}

variable "machine_default_type" {
type = string
default = "pc"
}

variable "network_model" {
type = string
default = "virtio"
}

variable "os_type" {
type = string
default = "l26"
}

variable "proxmox_api_token_id" {
type = string
}

variable "proxmox_api_token_secret" {
type = string
sensitive = true
}

variable "proxmox_api_url" {
type = string
}

variable "proxmox_node" {
type = string
}

variable "qemu_agent_activation" {
type = bool
default = true
}

variable "scsi_controller_type" {
type = string
}

variable "ssh_timeout" {
type = string
}

variable "tags" {
type = string
}

variable "io_thread" {
type = bool
}

variable "cpu_type" {
type = string
default = "kvm64"
}

variable "vm_info" {
type = string
}

variable "disk_discard" {
type = bool
default = true
}

variable "disk_format" {
type = string
default = "qcow2"
}

variable "disk_size" {
type = string
default = "16G"
}

variable "disk_type" {
type = string
default = "scsi"
}

variable "nb_core" {
type = number
default = 1
}

variable "nb_cpu" {
type = number
default = 1
}

variable "nb_ram" {
type = number
default = 1024
}

variable "ssh_username" {
type = string
}

variable "ssh_password" {
type = string
}

variable "ssh_handshake_attempts" {
type = number
}

variable "storage_pool" {
type = string
default = "local-lvm"
}

variable "vm_id" {
type = number
default = 99999
}

variable "vm_name" {
type = string
}

locals {
packer_timestamp = formatdate("YYYYMMDD-hhmm", timestamp())
}

source "proxmox-iso" "debian12" {
bios = "${var.bios_type}"
boot_command = ["${var.boot_command}"]
boot_wait = "${var.boot_wait}"
cloud_init = "${var.cloud_init}"
cloud_init_storage_pool = "${var.storage_pool}"
communicator = "ssh"
cores = "${var.nb_core}"
cpu_type = "${var.cpu_type}"
http_directory = "autoinstall"
insecure_skip_tls_verify = true
iso_file = "${var.iso_file}"
machine = "${var.machine_default_type}"
memory = "${var.nb_ram}"
node = "${var.proxmox_node}"
os = "${var.os_type}"
proxmox_url = "${var.proxmox_api_url}"
qemu_agent = "${var.qemu_agent_activation}"
scsi_controller = "${var.scsi_controller_type}"
sockets = "${var.nb_cpu}"
ssh_handshake_attempts = "${var.ssh_handshake_attempts}"
ssh_pty = true
ssh_timeout = "${var.ssh_timeout}"
ssh_username = "${var.ssh_username}"
ssh_password = "${var.ssh_password}"
tags = "${var.tags}"
template_description = "${var.vm_info} - ${local.packer_timestamp}"
token = "${var.proxmox_api_token_secret}"

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