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Dell Configuration Guide for the S4048–ON System 9.14.2.5

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Enabling and Configuring OS Image Hash Verification

To enable and configure Dell EMC Networking OS image hash verification, follow these steps:

  1. Enable the OS image hash verification feature.
    CONFIGURATION mode
    verified boot
  2. Verify the hash checksum of the current OS image file on the local file system.
    EXEC Privilege
    verified boot hash system-image {A: | B:} hash-value
    You can get the hash value for your hashing algorithm from the Dell EMC iSupport page. You can use the MD5, SHA1, or SHA256 hash and the Dell EMC Networking OS automatically detects the type of hash.
    NOTE The verified boot hash command is only applicable for OS images in the local file system.
  3. Save the configuration.
    EXEC Privilege
    copy running-configuration startup-configuration
After enabling and configuring OS image hash verification, the device verifies the hash checksum of the OS boot image during every reload.
DellEMC# verified boot hash system-image A: 619A8C1B7A2BC9692A221E2151B9DA9E

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