This article provides the information about How to upgrade SRX Series Firewalls from J-web by uploading the software package.
In J-web, navigate to the Device Administration > Software Management > Upload Package.
To upload software packages:
Field
Action
File to Upload
Enter the location of the software package on the local system or click Choose File to navigate to the location.
Reboot If Required
Select the check box to automatically reboot when the upgrade is complete.
Do not save backup
Select the check box so that backup copy of the current Junos OS package is not saved.
Format and re-partition the media before installation
This option is not available for SRX4600 devices.
Select the check box to format the internal media with dual-root partitioning.
Document referred : Upload Software Packages