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## 6.3.4 Execute Patch Installer Script

This topic provides the systematic instructions to execute Patch Installer Script for Product setup upgrade.

1. Launch putty and login to foundation VM with NIS user (for example, dkarkera) and then switch to the root user.
2. Navigate to the chef-repo path by executing the command,
   `/scratch/obma_patch_installer/chef-repo`
3. Execute the installer script by executing the command `./obo_patch_installer.sh`.

This will perform the silent patch set upgrade of Oracle Banking Microservices Architecture Foundation.

Note:

Executing the patch set installer script multiple times with setUserOverrides recipe will result in update of duplicate rows in the setUserOverrides.sh file.

Parent topic: Product Setup Upgrade