Version of ESX from command line

I got this from this blog: http://virtwo.blogspot.com/2010/10/which-esx-version-am-i-running-on.html

As root run: dmidecode | grep -A4 “BIOS Information”

BIOS Information
Vendor: Phoenix Technologies LTD
Version: 6.00
Release Date: 10/13/2009
Address: 0xEA2E0

Then match to below.

(An update of an older post: now with vSphere 4.1 info. Further updated in 2011 with vSphere 5 info.)
Your Linux runs on a VMware VM, but which ESX version is it ? You can see for yourself (as already explained in an earlier post on this blog). Run “dmidecode” and look at lines 10, 11 and 12. The list has been updated with current info:
ESX 2.5 – BIOS Release Date: 04/21/2004 – Address 0xE8480 – Size 97152 bytes
ESX 3.0 – BIOS Release Date: 04/17/2006 – Address 0xE7C70 – Size 99216 bytes
ESX 3.5 – BIOS Release Date: 01/30/2008 – Address 0xE7910 – Size 100080 bytes
ESX 4 – BIOS Release Date: 08/15/2008 – Address 0xEA6C0 – Size 88384 bytes
ESX 4U1 – BIOS Release Date: 09/22/2009 – Address 0xEA550 – Size 88752 bytes
ESX 4.1 – BIOS Release Date: 10/13/2009 – Address 0xEA2E0 – Size 89376 bytes
ESX 5 – BIOS Release Date: 01/07/2011 – Address 0xE72C0 – Size 101696 bytes

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