• Secure Mobile Access 12.4
• Introduction
• Upgrade Description
  • Upgrade Summary
  • Platform Compatibility
  • Discontinued Features
• Special Considerations
  • Client Upgrade Requirements
• Preparation
  • Finding the Authentication Code
  • Registering your SMA Appliance
  • Verifying the Downloaded Upgrade File
  • Backing up your Current Configuration
• SMA Infrastructure Upgrade
  • Installing an Update or Hotfix Using the Appliance Management Console
  • Upgrading CMS and Managed Appliances
  • Verifying the SMA Update
  • Verifying the Managed Appliances Update
  • Verifying the CMS Update
• Post-Upgrade Tasks
  • Importing a Configuration
  • Rolling Back SMA to a Previous Version
  • Rolling Back CMS to a Previous Version
• SonicWall Support
  • About This Document

Verifying the Downloaded Upgrade File

To verify that the update was successfully transferred to your local computer, compare its checksum against the MD5 checksum information displayed on MySonicWall.

To verify the MD5 checksum of the upgrade file on a PC, use a Windows- or Java-based utility. Microsoft, for example, offers an unsupported command-line utility on their site named File Checksum Integrity Verifier (FCIV).

To compare checksums using the File Checksum Integrity Verifier:

1. At the DOS command prompt, type the following, which returns a checksum for the downloaded file:

   fciv <upgrade_filename>.bin

2. Compare the result against the MD5 checksum displayed on MySonicWall. If they match, you can safely continue with your update. If they differ, try to the download again and compare the resulting checksums. If they still do not match, contact Technical Support.
3. To verify the MD5 checksum directly on your appliance, copy the upgrade file to the appliance and type the following command to see the checksum for the downloaded file:

   md5sum <upgrade_filename>.bin