We have recently ordered new leaf switches for our ACI fabric. Version that we have recieved is:
We need to downgrade this to:
When I am trying to push this through ACI then I receive an error telling me that this is not compatible. Hardware is N9K-C9348GC-FXP
You have to follow the recommended downgrade path:
Current release: 4.0(3)
Target release: 3.1(1)
Recommended path: 4.0(3) → 3.2(1) → 3.1(1)
Recommended software for target release:
Software no longer supported on target release:
Thanks for responding my APIC version is already running on 3.1(1i). So, I just need to downgrade the newly purchased leaf.
One solution that I can think of is to change the boot sequence from 14.0(3d) to 13.1(1i)
Are you auto-provisioning the new switch?
This may help -
You can manually downgrade the device via USB or tftp.
This document describes the upgrade but downgrading is the same thing:
I've done it a couple of times and it doesn't always work. You can also break the bootsequence to get into the loader-prompt (CTRL+C at "loading bootloader"). There you can boot from USB and afterwards copy the new image file to bootflash.
Thanks for the response Nick. Fortunately I got it to work finally. I am not really sure on what was the fix as I just repeated all the previous steps and that worked. Probably I was doing something wrong earlier. Also, thanks for the document will keep that in my repository.
I want to downgrade 2 leafs version 14.0 to 13.2
Tried to copy image to bootflash from usb, however after some time it will be deleted automatically.
I've seen this happening, too. I assume you try to copy the files before the downgrade. What worked for me was rebooting, breaking the boot sequence to enter bootloader, loading the new image from USB and then copy the files afterwards, when the downgrade is done.
Solved. There is a file named "auto-s". deleted the file. Copy the new image. Select boot new-image ...and done
This. Per Cisco, there is a script that runs on the leafs, and if the bootflash is too full, it will just start deleting files, including the new firmware you just tried to copy. Deleting 'auto-s' seems safe, and will free up disk space to load the new image without the switch deleting it.