If you are planning to upgrade to latest release of VMware Cloud Foundation (VCF) 9.0.1 and you are using an AMD Ryzen (consumer) processor, you will need to apply an additional workaround after your NSX Edges have been upgraded, for proper functionality. This is similar to the workaround that I had shared back in 2020, which is needed when deploying a new VCF 9.x environment due to the incompatibility of NSX Edges running on an AMD Ryzen CPU.
UPDATE (01/20/26) - VCF 9.0.2, the structure of the config.py has changed, you will need to identify the correct lines to comment out the AMD section. There is a more simpler workaround that can now be applied for all VCF releases, which you can find more details in this blog post HERE.
After the NSX Edge node has been upgraded, the modifications to the original system files are not persisted and we need to re-apply the changes before the NSX Edge nodes will run properly.
Thanks to Tomas Fojta for sharing this tidbit while upgrading his environment, which happens to run on an AMD Ryzen system.
Step 1 - SSH to the NSX Edge node as root
Step 2 - Edit /os_bak/opt/vmware/nsx-edge/bin/config.py and comment out L192-193 containing the AMD section and that will allow the NSX Edge to properly startup and complete the upgrade flow.

Thanks for the workaround! Currently trying to update from 9.0.0 to 9.0.1. Any idea where we VMUG members can find the "VCF-SDDC-Manager-Appliance-Upgrade-9.0.1.0.24962180.tar" bundle? I can't find it anywhere in the Broadcom support portal.
I ran into the same problem. I am able to update the VCF9 Management components (Fleet MGR, OPS, Auto, Logs) but when you go to do the SDDc Manager it is looking for the above file. I have reached out to VMUG and the VCF Team explaining the issue. I hope it gets resolved soon. I would like to do a Part 2 of my Upgrade video..
https://youtu.be/kq2EUaurlXo
Thanks
The VCF Upgrade/Patch files are NOT available for direct download via BSP, they're only available when connecting directly to VCF Online Depot w/Download Token OR Offline via VCF Download Tool (VCFDT) which also requires a download token.
I've just published https://williamlam.com/2025/10/vcf-software-depot-structure-deep-dive-for-install-upgrade.html for more in-depth understanding of the VCF Software Depot
For VMUG members, post 11/15/25, the VCF Licensing enablement will also allow users to generate download token, which should allow you to grab the update files
Thanks very much for the reply William.. I look forward to Nov 15 when we can get the token. It will solve a ton of issues and also allow me to do some good demo's in the classes I teach and the video's I create..
Have a good one.
Same! Eric just shared this week the go live will be 11/20/25