VMware ESXi requires the Execute Disable/No Execute CPU feature to be enabled


esx

I received this error when trying to upgrade an ESXi 4.1 server to 5.1. The error is caused when the No-Execute Memory Protection option is set to disabled. In my scenario I had a HP server so this was quite a simple process to enable the option in the BIOS. I was then able to run the setup successfully thereafter.

HP

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