I am able to sucessfully install ca-less master with customly generated root.pem containing 2 different certs
Steps to reproduce.
1. Export the following environmental variables:
- domain - domain name
- server1 - master hostname
- server2 - replica hostname
- client - client hostname
- dbdir - name of the certificate database folder (will be created)
- crl_path - a folder for crl files (will be created)
- dirman_password
2. Run the attached script to generate the set of certificates
3. Export the "ca1/server" cert: {{{pk12util -o server.p12 -n "ca1/server" -d "<dbdir>" -K "<cert_password>" -W "<dirman_password>"}}}
4. Extract 2 different certs into the single root.pem file:

certutil -L -d "<dbdir>" -n "ca1" -a > root.pem
certutil -L -d "<dbdir>" -n "ca2" -a >> root.pem

1. Install master providing '--ca-cert-file=root.pem' and '--http-cert-file=server.p12' parameters

Expected results:[[BR]]
Installation fails with the error message: "root.pem contains more than one certificate"

Actual results:[[BR]]
Installation succeeds