@Sebastian-Roth Tried that with our cert that we use. I replaced both the path for both TRUST= and CERT= with the certificate path, compiled and ran the installer. I tried it with the default.ipxe unchanged, as well as with the IP in place of the FQDN in the chain line.
My buildipxe.sh looks like:
The chain line of the default.ipxe looks like this:
Am I messing up the placement of the certificate? Apache asks for three separate certificate components (certificate, key, chain), am I supposed to have two different certificates specified in the buildipxe.sh?