Using Hashes To Verify Software Images Before Installation - Dell C9000 Series Networking Configuration Manual

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To boot from flash partition A:

BOOT_USER # boot change primary

To boot from flash partition B:

BOOT_USER # boot change primary

To boot from the network:

BOOT_USER # boot change primary

Server IP address

Assign an IP address and network mask to the Management Ethernet interface.

BOOT_USER # interface management ethernet ip address ip_address_with_mask

For example, 10.16.150.106/16.

Assign an IP address as the default gateway for the system.

default-gateway gateway_ip_address

For example, 10.16.150.254.

The environment variables are auto saved.

Reload the system.

BOOT_USER # reload

Using Hashes to Verify Software Images

Before Installation

You can use the MD5 message-digest algorithm or SHA256 Secure Hash Algorithm to validate the software

image on the flash drive, after the image has been transferred to the system, but before the image has been

installed. The validation calculates a hash value of the downloaded image file on system's flash drive, and,

optionally, compares it to a Dell Networking published hash for that file.

The MD5 or SHA256 hash provides a method of validating that you have downloaded the original software.

Calculating the hash on the local image file, and comparing the result to the hash published for that file on

iSupport, provides a high level of confidence that the local copy is exactly the same as the published software

image. This validation procedure, and the verify {md5 | sha256} command to support it, can prevent the

installation of corrupted or modified images.

FTOS-SI-9-5-0-169.bin

10.16.127.35

Switch Management

Troubleshooting