How to prep your Mac for Lion

Computerworld - Now that Lion has reached "golden master" status, it may be just days before Apple releases Mac OS X 10.7.

Only Apple knows the release date -- the latest rumors have it as July 6, maybe July 14 -- but you can prep your Mac now to make the upgrade go smoother and faster.

Make sure your Mac's CPU and memory meet Lion's 

requirements by bringing up "About This Mac."

Make sure your Mac can handle Lion

 

Lion's system requirements are slightly different than Snow Leopard's, so you need to verify that your Mac can run the new operating system.

Select "About This Mac" from the Apple menu, and look at the "Processor" and "Memory" items in the resulting pop-up.

 

For Processor, your Mac must have an Intel Core 2 Duo, Core i3, Core i5, Core i7 or Xeon CPU.

As for Memory, you need 2GB or more.

You can't do much about a processor that won't run Lion, but it's easy and inexpensive to boost memory in a Mac. Crucial, one of the largest RAM sellers, prices a 2GB upgrade for a mid-2008 MacBook (the low-end model came with just 1GB stock) at $30 or a 4GB upgrade for $60.

You must be running Snow Leopard

 

According to Apple, you can only upgrade to Lion from Mac OS X 10.6, aka Snow Leopard.
For now, Apple hasn't spelled out any direct upgrade path for users running Leopard, or Mac OS X 10.5, so if you're using that 2007 operating system, you'll first need to migrate to Snow Leopard, the OS Apple launched in August 2009.

Apple and others, including Amazon.com, sell a single-license copy of Snow Leopard for $29, or $49 for a five-license Family Pack.

For those still running Mac OS X Tiger and who have a Mac that meets the processor and memory requirements, the only option at the moment is to update to Snow Leopard using the $129 Mac Box Set.

A five-license Mac Box Set sells for $179.

Update to Mac OS X 10.6.8

 

Having Snow Leopard on your Mac isn't enough for Lion: You need to update the OS to version 10.6.8, which Apple released June 23.     More

With Lion set to roar, Apple issues security updates for Mac OS X

Lion, Apple’s newest desktop operating system, is set for delivery sometime in July, making this the last Snow Leopard update that many Mac users and admins will experience. 

 

Apple’s latest release, Mac OS X 10.6.8, fixes 40 security flaws and may be the last security update for its Snow Leopard version of the operating system. Apple has also issued security updates for its Mac OS X Snow Leopard Server edition, now at version 10.6.8.

The company has said its new Lion OS will be available at some point in July and can be downloaded via its App Store.     More