VM boots into UEFI Interactive Shell with the filesystem missing. (custom virt-install boot parameters)

My Setup

Host

OS: Manjaro XFCE x86_64 
Apps: packer (plugins: qemu), 
      virt-manager, virt-install 
      virt-viewer 

Guest

OS:                Arch Linux  
Hypervisor:        QEMU KVM  
Architecture:      x64
Machine Type:      q35
EFI Firmware Code: /usr/share/edk2/x64/OVMF_CODE.4m.fd
EFI Firmware Vars: /usr/share/edk2/x64/OVMF_VARS.4m.fd

I created a customized Arch Linux image on my host using packer build and log my boot options.

...
"==> bootloader.sh: Show boot options.."

BootCurrent: 0001
    Timeout: 0 seconds
    BootOrder: 0007,0000,0001,0002,0003,0004,0005,0006
    Boot0000* UiApp    FvVol(7cb8bdc9-f8eb-4f34-aaea-3ee4af6516a1)/FvFile(462caa21-7614-4503-836e-8ab6f4662331)
    Boot0001* UEFI QEMU DVD-ROM QM00001     PciRoot(0x0)/Pci(0x1f,0x2)/Sata(0,65535,0){auto_created_boot_option}
    Boot0002* UEFI QEMU DVD-ROM QM00005     PciRoot(0x0)/Pci(0x1f,0x2)/Sata(2,65535,0){auto_created_boot_option}
    Boot0003* UEFI Misc Device    PciRoot(0x0)/Pci(0x3,0x0){auto_created_boot_option}
    Boot0004* UEFI PXEv4 (MAC:525400123456)    PciRoot(0x0)/Pci(0x2,0x0)/MAC(525400123456,1)/IPv4(0.0.0.00.0.0.0,0,0){auto_created_boot_option}
    Boot0005* UEFI PXEv6 (MAC:525400123456)    PciRoot(0x0)/Pci(0x2,0x0)/MAC(525400123456,1)/IPv6([::]:<->[::]:,0,0){auto_created_boot_option}
    Boot0006* EFI Internal Shell    FvVol(7cb8bdc9-f8eb-4f34-aaea-3ee4af6516a1)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
    Boot0007* GRUB    HD(1,GPT,2034b5d2-828a-4491-8d23-fe9439932a12,0x800,0x7d000)/File(EFIGRUBgrubx64.efi)
...

So I’m thinking that this should go fine, but instead when I run this:

sudo virt-install 
--name bastille-installer 
--vcpu 2 
--machine q35 
--memory 1024 
--osinfo archlinux 
--debug 
--disk /var/lib/libvirt/images/bastille-installer_qemu_archlinux-2023-05.qcow2,format=qcow2 
--import 
--boot loader=/usr/share/edk2/x64/OVMF_CODE.4m.fd,loader_ro=yes,loader_type=pflash,nvram_template=/usr/share/edk2/x64/OVMF_VARS.4m.fd,loader_secure=no

The FS0: in the mapping table is completely missing.
And after exiting to see the boot manager I find that several boot options are missing as well.

In case it’s relevant, virt-install’s verbose output looks like this:

https://gist.github.com/Folaht/d8d4366b79434069ff6e8a7b51abbd25

What am I doing wrong?

[EDIT]

$ sudo qemu-img info ./bastille-installer_qemu_archlinux-2023-05.qcow2
image: ./bastille-installer_qemu_archlinux-2023-05.qcow2
file format: raw
virtual size: 1.42 GiB (1522309120 bytes)
disk size: 1.42 GiB
Child node '/file':
    filename: ./bastille-installer_qemu_archlinux-2023-05.qcow2
    protocol type: file
    file length: 1.42 GiB (1522309120 bytes)
    disk size: 1.42 GiB

Looks like I have a raw file issue.
Something must be causing packer to ignore building the box as a qcow2 file despite being configured as such.

bastillebox-installer-box.pkr.hcl

...
source "qemu" "archlinux" {
  accelerator             = "kvm"
  boot_command            = local.boot_command_qemu
  boot_wait               = "1s"
  cpus                    = local.cpus
  disk_interface          = "virtio"
  disk_size               = local.disk_size
  efi_boot                = true
  efi_firmware_code       = local.efi_firmware_code
  efi_firmware_vars       = local.efi_firmware_vars
  format                  = "qcow2"
  headless                = local.headless
  http_directory          = local.http_directory
  iso_url                 = local.iso_url
  iso_checksum            = local.iso_checksum
  machine_type            = local.machine_type
  memory                  = local.memory
  net_device              = "virtio-net" 
  shutdown_command        = "sudo systemctl start poweroff.timer"
  ssh_handshake_attempts  = 500
  ssh_port                = 22
  ssh_private_key_file    = var.ssh_private_key_file
  ssh_timeout             = var.ssh_timeout
  ssh_username            = var.ssh_username
  ssh_wait_timeout        = var.ssh_timeout
  vm_name                 = "${local.vm_name}.qcow2"
}
...