Before you start the installation of OES 2015 SP1, ensure to edit the autoinst.xml file and modify the OES alias name to a meaningful one. Else, the OES alias name will be displayed in some random characters.
<add_on_products config:type="list">
<listentry>
<media_url><![CDATA[http://192.168.1.1/install/OES2015/GMC/x86_64]]></media_url>
<product>Open_Enterprise_Server</product>
<product_dir>/</product_dir>
<name>MyOES_name</name>
<alias>MyOES_alias</alias>
</listentry>
</add_on_products>