Preseed file can't be found on Packer's http server

Packer
1

Provider: Proxmox.iso
OS: Debian11

Issue:
I am having trouble with Packer not connecting to its http server it spins up.
Packer is able to work just fine when I provide an apache2 web server for Debian’s preseed file, but when left to use its own http server, the Debian install halts at a blue screen after acquiring DHCP leases. I am able to get to the preseed file on a few different computers (On the same subnet and different subnets), has anyone has issues with this before? Hoping to get this working so I don’t need an additional server to provide the preseed file.

Thank you!

1 Like
2

I’m experiencing the same issue
at one point I had it working by specifying the host’s actual IP address instead of the default NAT address virtualbox uses, but then it seemed to stop working for some reason I can’t place

3

wait I remember what broke it.
I used the IP of my WSL install and was able to fetch the preseed, but I still couldn’t access the guest over SSH for provisioning.
I think it was because WSL wasn’t running in mirrored mode and so I changed that setting so I could access the same localhost as the port forward was set to use.
But in mirrored mode, my preseed solution stopped working and going back to the default still didn’t work.

4

Ok setting my .wslconfig to this worked for me:

[wsl2]
networkingMode=mirrored
[experimental]
hostAddressLoopback=true

Good luck!