Users Guide

file name : systemb

BOOT_USER #

To boot from the network:

BOOT_USER # boot change primary

boot device : tftp

file name : FTOS-SI-9-5-0-169.bin

Server IP address : 10.16.127.35

BOOT_USER #

4 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.

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

default-gateway gateway_ip_address

For example, 10.16.150.254.

6 The environment variables are auto saved.

7 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 ash 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 le on system’s ash drive, and, optionally, compares it to a Dell Networking published hash for that le.

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

local image le, and comparing the result to the hash published for that le on iSupport, provides a high level of condence 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 modied images.

The verify {md5 | sha256} command calculates and displays the hash of any le on the specied local ash drive. You can compare the

displayed hash against the appropriate hash published on i-Support. Optionally, the published hash can be included in the verify {md5 |

sha256} command, which will display whether it matches the calculated hash of the indicated le.

To validate a software image:

1 Download Dell Networking OS software image le from the iSupport page to the local (FTP or TFTP) server. The published hash for

that le is displayed next to the software image le on the iSupport page.

2 Go on to the Dell Networking system and copy the software image to the ash drive, using the copy command.

3 Run the verify {md5 | sha256} [ ash://]img-le [hash-value] command. For example, verify sha256 ash://FTOS-SE-9.5.0.0.bin

4 Compare the generated hash value to the expected hash value published on the iSupport page.

To validate the software image on the ash drive after the image has been transferred to the system, but before the image has been

installed, use the verify {md5 | sha256} [ ash://]img-le [hash-value] command in EXEC mode.

• md5: MD5 message-digest algorithm

• sha256: SHA256 Secure Hash Algorithm

• ash: (Optional) Species the ash drive. The default is to use the ash drive. You can just enter the image le name.

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