Ubuntu bare-metal provisioning

Hi Team,

I am trying to install ubuntu using local http URL- but I am not able to get success and not sure whether this is supported or not in foreman.
and here is the summery what I have done so far-

I have just configured the web server & copy the ubuntu ISO file inside one directory and accessible using the URL

to install ubuntu I am using Preseed default ( Partition table ) & Provisioning template “Preseed default” and installation media URL but when I am provisioning the server then I am getting below error


can some point me what could be the issue here