HT201364 I have a macbook air 1.1 --- maverick update wont install  -- isnt this a late 2008 mac air?

How do I figure out whether my MacBook Air can run with OS X Maverick? I think its a late 2008 MacBook Air, but the installer wont allow me to install.
Thx,
flying gorilla
odel Name:          MacBook Air
  Model Identifier:          MacBookAir1,1
  Processor Name:          Intel Core 2 Duo
  Processor Speed:          1.6 GHz
  Number Of Processors:          1
  Total Number Of Cores:          2
  L2 Cache:          4 MB
  Memory:          2 GB
  Bus Speed:          800 MHz
  Boot ROM Version:          MBA11.00BB.B03
  SMC Version (system):          1.23f20
  Serial Number (system):          W8813CU6Y51
  Hardware UUID:          71716D67-B5FC-50DC-8CB5-DF2A06EEA879
  Sudden Motion Sensor:
  State:          Enabled
  System Version: Mac OS X 10.6.8 (10K549)
  Kernel Version: Darwin 10.8.0
  Boot Volume: Macintosh HD
  Boot Mode: Normal
  Secure Virtual Memory: Enabled
  64-bit Kernel and Extensions: No
  Time since boot: 10 minutes

No, it's the very first MBA. Max OS X is 10.7.5. A Late 2008 MBA is 2,1.
Upgrading from Snow Leopard to Lion or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99.
If you sign into the App Store and try to purchase Mountain Lion but the App Store says your computer is not compatible then you may still be able to upgrade to Lion per the following information.
A. Upgrading to Mountain Lion or Mavericks
To upgrade to Mountain Lion or Mavericks you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion or Mavericks (Free) from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion — System Requirements
     OS X Mavericks- System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) — Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) —
             Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) — Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) — Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) — Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) — Model Identifier 3,1 or later
         7. Xserve (Early 2009) — Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.
B. Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service - this includes international calling numbers. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.

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