8.5.5 Update Tool Execution Host

If you are planning to update all Exadata database servers at once, it is a requirement to run the update utility from a Linux node outside the group of Exadata database servers being updated. This is because the update utility cannot update the Exadata database server it is currently running on. If you have no other systems running Oracle Linux or Oracle Solaris you can run the update utility from one of the Exadata database servers. In such cases be sure that the Exadata database server where the update utility is running is not listed in the dbs_group file you specify.

You need to set up ssh equivalence for the root user from the driving node to the root user of all Exadata database servers that will be updated.