Yes, it’s another blog post about how to create a nested ESXi 5.1 for lab purposes. The reason why I decided to write one was because of my frustration with the guides out there that I tried to follow but didn’t work. Well, technically, it did work but what I wanted to do was to enable 64-bit guest OS inside the virtual ESXi host. I already had several template VMs that I can just clone from my physical ESXi to virtual ESXi host, so in theory it should be a lot faster than building a 32-bit based VM. Well, guess what? It didn’t happen. I spent quite some time to get it to work the way I envisioned it since the guides that I followed missed the extra step. If I left it alone with 32-bit, then I would’ve probably saved time! But, it really bugged me because my ESXi host has a CPU that allows me to have 64-bit guest OS inside a virtual ESXi host, so I had to find a solution to make it work.
My ESXi host has been neglected so I was running the original ESXi 5.0 image since I built it. Yesterday, I decided to get it updated and build my virtual ESXi lab for the purpose of Nexus 1000V and probably for VCP studies. I have until the second week of December to use my exam voucher that I received from my VMware Academy course that I took last year for the VCP5-DCV exam. If you’re interested in updating your ESXi 5.0 to 5.1, please follow this guide. Now, that guide doesn’t update to 5.1 U1 so you may want to use this instead.