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42 changes: 42 additions & 0 deletions lib/facter/esx_version.rb
Original file line number Diff line number Diff line change
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require 'facter'

# Author: Francois Deppierraz <[email protected]>
# Idea and address/version mapping comes from
# http://virtwo.blogspot.ch/2010/10/which-esx-version-am-i-running-on.html

Facter.add(:esx_version) do
confine :virtual => :vmware
setcode do
if File::executable?("/usr/sbin/dmidecode")
result = Facter::Util::Resolution.exec("/usr/sbin/dmidecode 2>&1")
if result
begin
bios_address = /^BIOS Information$.+?Address: (0x[0-9A-F]{5})$/m.match(result)[1]

case bios_address
when '0xE8480'
'2.5'
when '0xE7C70'
'3.0'
when '0xE7910'
'3.5'
when '0xEA6C0'
'4'
when '0xEA550'
'4 update 1'
when '0xEA2E0'
'4.1'
when '0xE72C0'
'5'
when '0xEA0C0'
'5.1'
else
"unknown, please report #{bios_address}"
end
rescue
'n/a'
end
end
end
end
end