Enbale debian12 template to boot with uefi settings after box build

[philnewm]

The goal is to have all box builds working with UEFI to mimic physical machiens as closly as possible here.

Except for debian12 that already works for all other 4 box builds.
Building the box in uefi mode works when modifying the bootcomamnd in varaibales.pkr.hcl like this
These changes are based on

• vbox forum
• debian forum

local "debian_vagrant_boot_command_12_x86_64" {
  expression = [
    "<wait><wait><wait>c<wait><wait><wait>",
    "linux /install.amd/vmlinuz auto=true priority=critical ",
    "url=http://{{ .HTTPIP }}:{{ .HTTPPort }}/debian-12-vagrant-x86_64.preseed ",
    "hostname=debian12 domain='' interface=auto ",
    "vga=788 fb=false noprompt quiet ",
    "DEBIAN_FRONTEND=text --<enter>",
    "initrd=/install.amd/initrd.gz<enter>",
    "boot<enter>"
  ]
}

The box will builds just fine but when testing to run vagrant up after the build it fails to find the UEFI Hard Disk.

So far i tried

• debian docs
• similar issue

I also tried a fully manual instalaltion in UEFI mode and it wokred even rebooting afterwards, no issues.
Will attach the exported preseed file I got from running source

sudo apt-get update && sudo apt-get install debconf-utils
sudo debconf-get-selections --installer > preseed.cfg

debian_vbox_working_uefi_preseed.txt

There must be a way to make this work.