Unattend.xml not used for WS2009 with Packer & VirtualBox

[jvuibert]

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Overview of the Issue

Packer launchs the virtual machine (WS2009 Std) creation, mounts the floppy disk.
But the Windows Server 2019 Std installation stays on waiting user actions (language selection and so on) because the unattend.xml file is not used.

Reproduction Steps

1. Create an autounattend.xml file from the WS20019 EVAL ISO file, using the Windows SIM tool
2. Use packer + virtualbox to generate OVA file from ISO + answer file
3. Validate packer file, then build the all

Note by opening the VFD file created by Parker, I see the content of the unattend.xml

Packer version

1.8.0

Simplified Packer Template

Packer template
https://github.com/jvuibert/packer-ws2019/blob/main/mywindows2019.pkr.hcl
Answer file
https://github.com/jvuibert/packer-ws2019/blob/main/scripts/Autounattend.xml

Operating system and Environment details

Host : Windows 10 (for Packer and Windows SIMP tool to generate the unattend.xml)
VirtualBox : 6.1.34 r150636
ISO Windows Server 2019 : 17763.737.190906-2324.rs5_release_svc_refresh_SERVER_EVAL_x64FRE_en-us_1.iso

[github-actions]

This issue has been migrated to hashicorp/packer-plugin-virtualbox#71 due to the Packer Plugin split.

Please follow the new issue for updates.

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
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