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Any configuration changes made locally on the switch won't be synchronized with Sophos Central. We recommend making changes from the Sophos Central control panel instead.

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https://docs.sophos.com/nsg/switch/help/en-us/index.html?contextId=user-guide-features-configure-firmware-dual-image

Dual Image

The switch maintains two versions of the switch firmware in its permanent storage. One image is the active firmware, and the second image is the backup firmware. The dual image screen enables the user to select which partition will be set as active after the next restart. The switch boots and runs from the active image. If the active image is corrupt, the system automatically boots from the non-active image.

Option Description
Active Selects the partition you wish to be active.
Flash Partition Displays the number of the partition.
Status Displays the partition which is currently active on the switch.
Image Name Displays the name and version number of the image
Image Size Displays the size of the image file.
Created Time Displays the time the image was created.

Click Apply to update the system settings.