Use offline update to mount an ISO to all nodes in a group and then reset the nodes to boot from the ISO and perform an offline update.
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From the iLO Federated Update screen, select Actions → Offline Review/Deploy. HP SUM displays the iLO Federation group name and Interface iLO. 
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In the ISO Image box enter the URL of an ISO image that is available via HTTP on the network. 
 ![[NOTE: ]](images/note.png) NOTE: Select the source ISO that contained the baseline you used to inventory the iLO Federation group. 
 
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In the Filters section, select the servers you want HP SUM to power off and deploy components. 
HP SUM displays an error message if the ISO image does not mount.