cURL commands not resolving when attempting to build using ISO builder

[zamanh]

Overview of the Issue

I'm attempting to build a Intel based 15.5 Mac virtual machine from scratch using the ISO builder. I am upgrading from version 1.2.2 so I can make use of Parallels 20.4. When booting into recovery mode to access the terminal to invoke some curl commands that download some files e.g. bootstrap, packer.pkg and setupsshlogin.pkg that are present on the host to bootstrap into the Mac OS installer within the guest, I am seeing errors when trying to refer to the host ip which you can see from screenshots below:

Sometimes the network cards won't be visible, sometimes the machine at this state fails to get DHCP, the errors seem to vary.

Reproduction Steps

Steps to reproduce this issue

• make a http folder with some dummy files on the host to copy over into the guest
• Trigger a packer build using the ISO builder
• Create a boot command which attempts to curl some files down from the host machine into the guest machine
• Observe the errors

Plugin and Packer version

1.9.4 and plugin 1.2.8

Simplified Packer Buildfile

https://gist.github.com/zamanh/fc9d87cdead1c8013671d0b559959d0c

There may be some syntactical mistakes and missing items as I've attempted to abstract from our internal tooling without giving any secrets away. Let me know if this isn't good enough for a reproduce.

Operating system and Environment details

Host is running on a Mac OS Sequoia 15.1.1 on a Mac mini 2018 w/ 32GB ram and a 3.2Ghz i7 processor

Log Fragments and crash.log files

https://gist.github.com/zamanh/e79a948008ab1a4693ed93054f77f3e5

[zamanh]

I have also sent a technical Parallels report with ID: 497659396

[zamanh]

I had a look at the host Mac's firewall and the reason why version 1.2.2 is working because there was an automatic entry for it to work - so I have added plugin 1.2.8, Parallels Desktop app and the packer bin all for good measure, the VM appears to get an IP, I still get the odd 169. address, but I think I'm seeing more "connection reset by peer" now:

[sai-kumar-peddireddy]

@zamanh will get back to you soon

[zamanh]

I tried another workaround where I attempt to avoid using http dir and just mount the files via disk and after the install of Parallels tools, the IP address changed on restart however Packer was still waiting for an SSH connection on the old IP, the gist for that is here: https://gist.github.com/zamanh/06e9e9fe57b9e565855b983a8cfb639e

I have observed, machines also getting spun over with no IP address as also shown in this gist here: https://gist.github.com/zamanh/06e9e9fe57b9e565855b983a8cfb639e