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Installing Software Upgrades

Use either the J-Web interface or the CLI to upgrade from one software release to another.

Note: To upgrade from the JUNOS software to JUNOS software with enhanced services, see the JUNOS Software with Enhanced Services Migration Guide.

Note: Previously, upgrading images on J-series devices with 256 MB compact flash from Release 8.5 onward involved removing unwanted files in the images and removing the Swap Partition. From 9.2 Release onwards, as an alternative, the software accomplishes the upgrade efficiently to take another snapshot of the compact flash, install the image, and restore configurations.

This section contains the following topics:


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