Ref: Installing Software on SRX Series Devices | Junos OS | Juniper Networks
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Example: Installing Junos OS Upgrade Packages on SRX Series Devices
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Requirements
Before you begin:
* Verify the available space on the internal media.
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Overview
By default, the request system software add package-name command uses the validate option to validate the software package against the current configuration as a prerequisite to adding the software package. This validation ensures that the device can reboot successfully after the software package is installed. This is the default behavior when you are adding a software package.
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