When you upgrade your software, the device creates a backup image of the software that was previously installed, as well as installs the requested software upgrade.
To downgrade the software, you can use the backup image of the software that was previously installed, which is saved on the device. If you revert to the previous image, this backup image is used, and the image of the running software is deleted. You can downgrade to only the software release that was installed on the device before the current release with this method.
Use the procedures as described in Installing Software Upgrades with the J-Web Interface and Installing Software Upgrades Using the CLI and specify an older software image as the source image to be upgraded.
Downgrade your software with either the J-Web interface or the CLI.
Note: To downgrade JUNOS software with enhanced services to the JUNOS software, see the JUNOS Software with Enhanced Services Migration Guide.
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