Updating from tiger to leopard
You'll see the mac OS name, such as mac OS Mojave, followed by its version number.
If some product or feature requires you to know the build number as well, click the version number to see it.
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Visit Stack Exchange I just had this exact same problem.
Unfortunately there is no solution which will be cheap AND easy.
If you have access to an external USB or Firewire hard drive and another computer that does have a working CD drive, you could use the other computer to clone the Leopard CD onto the external drive, and install from there. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Guests can still view into the tiger and sloth bear exhibit yards from the walkway that runs from leopards to gibbons, however, this walkway lacks an ADA-accessible route from the main Zoo.
To get your free upgrade click here, log in to your Mobile Me account and fill out your mailing address.Expedition Asia will reinvigorate the Zoo’s Asian Trail and draw upon the success of the recently opened John Woodard Memorial Gibbons Exhibit, a project that preserved the Zoo’s historic limestone heritage while introducing modern practices.Expedition Asia will construct state-of-the-art animal care facilities to house tiger, sloth bear and Amur leopard family units.It will truly provide an immersive experience for every community member and allow Manhattan to continue to point to the Zoo with pride as it remains a cultural asset that contributes to the region’s quality of life.Is your Mac up to date with the latest version of the Mac operating system (mac OS or OS X)?