Upgrading ESX to ESXi 4.1 3.5?

I searched through the release notes, and it seems clear to me that I can go from ESX 3.5 to ESXi 4.1.

It is specified that you can go to the ESXI have 3.5 to ESXi 4.1, but only as of ESX 3.5?  Can I upgrade level, or what I have to do a fresh install?

ESX 3.5? Can I upgrade level, or what I have to do a fresh install?

Cannot mix types i to i or ESX to ESX, you cannot 'upgrade' (i) ESX to ESX or vice versa.  So a new installation is necessary.

Tags: VMware

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