X
Mount the ISO via the Cisco UCS KVM Console (Virtual Media).
If you are upgrading an existing host, do not use the bootable ISO. Instead, use the offline bundle ( .zip file) via the ESXi command line interface (CLI) to preserve configurations.
Input your server model, CPU architecture, and desired ESXi target version into the matrix tool.
Always cross-reference your UCS server firmware version with the ESXi version using the Cisco Hardware Compatibility List (HCL) tool. vmware esxi cisco custom iso top download
In the KVM console, go to the menu and choose Power Cycle System (or Warm Reset).
The official source for all VMware vSphere software, including custom vendor ISOs, is the . Link: support.broadcom.com
You can download official, digitally signed Cisco Custom ESXi ISOs from two main portals. Both require a valid account, but the software binaries are identical. 1. VMware by Broadcom Customer Connect Portal (Recommended) Mount the ISO via the Cisco UCS KVM Console (Virtual Media)
This article will guide you through finding the top download sources for Cisco Custom ESXi ISOs as of mid-2026, explain why they are necessary, and provide tips for ensuring a smooth deployment. What is a Cisco Custom ESXi ISO?
In the KVM window, click on the tab at the top menu.
Custom ISOs are tested and certified by both VMware and Cisco to ensure they meet the Hardware Compatibility List (HCL) requirements. Input your server model, CPU architecture, and desired
For ESXi 8.0 U2 (example – links change, so use portal):
Downloading the top available ISO is only half the battle. You must ensure that the drivers inside that ISO match the firmware running on your physical Cisco UCS infrastructure. Running mismatched versions can cause data corruption or unexpected disconnects.
VMware (now Broadcom) changed partner ISO access. The ISO is determined by stability + patch level.
