Psychological Requirements

Upgrading an operating system is always a traumatic experience for a computer—and, too often, for its owner. If you can rein in your excitement long enough to perform just a few extra steps, you’ll be glad you did.

  • Check your hard drive. Open Disk Utility (Disk Utility), click your main hard drive’s name and then click Verify Disk. If the program reports that you have problems, you’ll have to start up from a different disk (like the Snow Leopard DVD), run Disk Utility again, and use the Repair Disk button this time.

  • Turn off FileVault, if you’re using it. (You’d remember turning on this Home-folder-encryption feature in Snow Leopard.)

  • Make sure your software will run. Most modern programs run very smoothly on Lion. But some older ones won’t run—in particular, programs like AppleWorks and Microsoft Office 2004 that relied on Snow Leopard’s now-defunct Rosetta translation technology. Find out for sure by visiting http://roaringapps.com/apps:table and looking up the programs you own.

    Tip

    You can also look up your own programs using the System Profiler program in your Applications→Utilities folder. In the left-side column, click Applications. Click the Kind column heading to sort your programs. The programs listed as PowerPC or Classic won’t run in Lion.

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