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 procedure.
The requested data carrier is not mounted on any of the mount points you entered.
Enter at least the mount point containing Upgrade ADD-On.
SRM_SERVER 714, SRMNXP01 150, SRM_SERVER , KBA , BC-UPG-ADDON , Upgrade Add-On Components , Problem
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