Is it possible to migrate certificates and upgrade the version of Symantec Critical Systems Protection 5.2.9 to DCS 6.x in the same step ?
You cannot migrate certificates and upgrade the version of SCSP to DCS in the same step. We will need to have the server.exe installer create the new server.xml against your certificates. The reason is that 5.2.9 certificates are in JKS format and DCS 6.5 certificates use PKCS12 hence the keystoretype will not match.
We will need to have the server.exe installer create the new server.xml against your certificates. This is by design.