install Elasticsearch requires more than 1 DPK ?

I'm running Elasticsearch install, so I have only one DPK file ... but the installer script seams to require more than 1 ?

do I need other PeopleTools DPK ?

[root@elasticsrv01 setup]# ./psft-dpk-setup.sh --dpk_src_dir /mnt/elastic/dpk –-env_type es

Starting the PeopleSoft Environment Setup Process:

Verifying if Puppet Software is Installed on the Host:     [  OK  ]

Preparing the OracleLinux VM for PeopleSoft Environment:

Checking if DPKs are Present in the Filesystem:            [  OK  ]

The base directory is used to extract the PeopleSoft DPKs as well as for

deploying PeopleSoft Components. This directory should be accessible on the

VM, must have write permission and should have enough free space.