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SonicOS 5.8.1 Administrator Guide
• Size - the size of the firmware file in Mebibytes (MiB).
• Download - clicking the icon saves the firmware file to a new location on your computer or
network. Only uploaded firmware can be saved to a different location.
• Boot - clicking the icon reboots the SonicWALL security appliance with the firmware
version listed in the same row.
Caution Clicking Boot next to any firmware image overwrites the existing current firmware image
making it the Current Firmware image.
Caution When uploading firmware to the SonicWALL security appliance, you must not interrupt the
Web browser by closing the browser, clicking a link, or loading a new page. If the browser
is interrupted, the firmware may become corrupted.
Updating Firmware Manually
Click Upload New Firmware to upload new firmware to the SonicWALL security appliance. The
Upload Firmware window is displayed. Browse to the firmware file located on your local drive.
Click Upload to upload the new firmware to the SonicWALL security appliance.
Creating a Backup Firmware Image
When you click Create Backup, the SonicWALL security appliance takes a “snapshot” of your
current system state, firmware and configuration preferences, and makes it the new System
Backup firmware image. Clicking Create Backup overwrites the existing System Backup
firmware image as necessary.
SafeMode - Rebooting the SonicWALL Security Appliance
SafeMode allows easy firmware and preferences management as well as quick recovery from
uncertain configuration states. To access the SonicWALL security appliance using SafeMode,
use a narrow, straight object (such as a straightened paper clip or a toothpick) to press and hold
the reset button on the back of the security appliance for more than twenty seconds. The reset
button is in a small hole next to the console port or next to the power supply.
Note Holding the reset button for two seconds will take a diagnostic snapshot to the console.
Holding the reset button for six to eight seconds will reboot the appliance in regular mode.