TOTD: How to verify the "md5 checksum" for ACI images in the APIC Firmware repository?

[Tomas de Leon]

Checking the MD5 Checksum on the ACI Versions for the APIC and N9K images should be a a best practice prior to an upgrade. You should make sure to check the MD5 Checksum for images on all of the APIC's firmware repositories.

Note: some of the listed methods may not be available in some releases. For this example were are using images: aci-catalog-dk9.2.0.2g.bin & aci-n9000-dk9.12.0.2g.bin

MD5 CHECKSUM INFORMATION FROM WWW.CISCO.COM

NXOS LIKE CLI METHOD

• ssh to the APIC as admin user
• show firmware repository detail
• Verify with the MD5 Checksum listed on www.cisco.com

CLASSIC CLI METHOD

• ssh to the APIC as admin user
• bash
• firmware list
• Verify with the MD5 Checksum listed on www.cisco.com

MANUAL METHOD

• ssh to the APIC as admin user
• cd /firmware/fwrepos/fwrepo
• ls -al
• md5sum aci-apic-dk9.2.0.2g.bin
• md5sum aci-n9000-dk9.12.0.2g.bin
• Verify with the MD5 Checksum listed on www.cisco.com

[Arumugam Muthaiah]

thanks for sharing the useful information !!!

[ibbyvk]

Is there a way to check MD5 on a running leaf WITHOUT having to do it from an APIC? Our Leaf node is not registered, we have reason to believe the image file is corrupt since the USB drive had a bad checksum on it.