![]() This prohibits additional control panels and extensions-beyond those needed by the 9.2 operating system-from loading. Turn Off Extensions-Turning off the extensions is the equivalent of pressing Shift while booting into Mac OS 8 or 9. You can make three modifications to the startup process: Click the Advanced tab to see the advanced startup options. Open the System Preferences and choose the Classic panel. Instead, you can use the advanced startup options to provide some control over the boot sequence. ![]() The Classic boot window does not passkeystrokes directly to the booting Mac OS 9.x system. Although your initial reaction might be to hold down the Shift keywhile Classic starts, this will not work. The first is touse the Mac OS X Classic System Preferences panel to disable extensions duringstartup. There are two avenues for resolving a problem with Classic. So, what do you do when Classic won't boot? In somecases, they may interfere with the booting process altogether. Figure 4.6 Classic loads your extensions as it boots.Įxtensions or control panels that access hardware and those that patch theMac OS system routines are most likely to cause problems under Classic. If you're upgrading an older system, you might find that some extensions cause Classic to crash. If you installed Mac OS X from scratch, you should be in good shape. Figure 4.5 The first time Classic is run, Mac OS X will modify your 9.x installation.Īs Classic boots, it will load all the extensions and control panels that you had previously installed on your Mac OS 9.x installation, as shown in Figure 4.6. If you have a Mac OS Xcompatible version of Mac OS 9.x that is not themost current release, Mac OS X might give you a warning with instructions on howto update the earlier operating system.Īlthough Mac OS 9.2 is the preferred Classic OS for Mac OS X 10.2, users with9.1 will still be able to boot into Classic and upgrade at their leisure.
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