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60 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Determining the software versions installed and running on a device
3
CLI commands
Use the following command syntax to verify the flash image:
Syntax: verify md5 | sha1 | crc32 <ASCII string> | primary | secondary [<hash code>]
• md5 – Generates a 16-byte hash code
• sha1 – Generates a 20-byte hash code
• crc32 – Generates a 4 byte checksum
• ascii string – A valid image filename
• primary – The primary boot image (primary.img)
• secondary – The secondary boot image (secondary.img)
• hash code – The hash code to verify
The following examples show how the verify command can be used in a variety of circumstances.
To generate an MD5 hash value for the secondary image, enter the following command.
PowerConnect#verify md5 secondary
PowerConnect#.........................Done
Size = 2044830, MD5 01c410d6d153189a4a5d36c955653862
To generate a SHA-1 hash value for the secondary image, enter the following command.
PowerConnect#verify sha secondary
PowerConnect#.........................Done
Size = 2044830, SHA1 49d12d26552072337f7f5fcaef4cf4b742a9f525
To generate a CRC32 hash value for the secondary image, enter the following command.
PowerConnect#verify crc32 secondary
PowerConnect#.........................Done
Size = 2044830, CRC32 b31fcbc0
To verify the hash value of a secondary image with a known value, enter the following commands.
PowerConnect#verify md5 secondary 01c410d6d153189a4a5d36c955653861
PowerConnect#.........................Done
Size = 2044830, MD5 01c410d6d153189a4a5d36c955653862
Verification FAILED.
In the previous example, the codes did not match, and verification failed. If verification succeeds,
the output will look like this.
PowerConnect#verify md5 secondary 01c410d6d153189a4a5d36c955653861
PowerConnect#.........................Done
Size = 2044830, MD5 01c410d6d153189a4a5d36c955653861
Verification SUCEEDED.
The following examples show this process for SHA-1 and CRC32 algorithms.
PowerConnect#verify sha secondary 49d12d26552072337f7f5fcaef4cf4b742a9f525
PowerConnect#.........................Done
Size = 2044830, sha 49d12d26552072337f7f5fcaef4cf4b742a9f525
Verification SUCCEEDED.
and
PowerConnect#verify crc32 secondary b31fcbc0
PowerConnect#.........................Done
Size = 2044830, CRC32 b31fcbc0
Verification SUCCEEDED.