Sometimes, the vendor ISO is outdated, or you are using unsupported consumer hardware (looking at you, Realtek NICs). You need to build your own.
Here is everything you need to know about the ESXi ISO—from where to get it legally to how to slipstream your own drivers. esxi iso
A standard ESXi ISO, often referred to as the "base image," is the official version released by VMware (now Broadcom). This image includes the core ESXi hypervisor and a generic set of drivers. Sometimes, the vendor ISO is outdated, or you
Check the VMware Compatibility Guide to verify that your server’s NICs and storage controllers are supported. Types of ESXi ISOs A standard ESXi ISO, often referred to as
Create a Custom ESXi ISO Image Using vSphere Lifecycle Manager
At least 8 GB of disk space for the installation itself.
A freshly installed ESXi host is not production-ready. It requires immediate hardening to meet compliance standards (such as DISA STIG or CIS Benchmarks).