This article provides the information about How to upgrade SRX Series Firewalls using J-web/GUI from a remote server.
In J-web, navigate to the Device Administration > Software Management > Upload Package.
You can install a software package from a remote server.
To install software packages:
Field
Action
Package Location
Enter the full address of the software package location on the FTP or HTTP server. For example, use one of the following formats:
ftp://hostname/pathname/package-name
http://hostname/pathname/package-name
User
Enter the username to use on a remote server.
Password
Enter the password to use on a remote server.
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
Select the check box to format the internal media with dual-root partitioning.
Document referred : Install Software Packages