https://userapps.support.sap.com/sap/support/knowledge/en/2524507
2524507 - Steps to add Software component SRM_SERVER 714 and SRMNXP01 for EHP8 for SAP ERP 6.0. |...
While performing EHP8 for SAP ERP 6.0 upgrade, SUM gets stuck in Phase PREP_EXTENSION/IS_SELECT: Could not find suitable DVDs for product ERP required for the...