![]() ![]() ![]() Software Install procedures are designed to allow discrete installation of specific software. This means that any data or customer-installed software will be lost. Software Restore procedures erase all the information on a drive and replace it with the factory default software. ![]() Do not take the risk of losing customer information. NOTE When using Software Install or Software Restore CDs, back up any customer data before proceeding. The discs that come with a system are normally the best resource for troubleshooting using a known-good startup disc, since they were designed specifically to work with that system. They are bootable, which enables you to start up a Mac that has a damaged OS on its drive. These discs are important troubleshooting and service resources. Install and Restore Discs Apple currently supplies Software Restore and Software Install CDs and DVDs with many of its computers. If the problem has reappeared, the last item selected is suspect and should be the focus of your further troubleshooting efforts. Select the checkbox next to a suspected problem file to add it to the new Testing set.Ĭheck to see if the problem has reappeared. Follow these steps: 1.Ĭhoose Mac OS 9 All from the Selected Set pop-up menu. Extensions Manager Exercise For the following exercise, you need a Mac running Mac OS 9. Unfortunately, Conflict Catcher's original publisher is no longer in business, but you should be aware of the utility, as it is commonly found installed on Macintosh computers. You can automate this laborious process through the use of Conflict Catcher, a popular third-party replacement for Extensions Manager. Discovering the troublesome item requires creating a new test set by duplicating the Mac OS 9 All set, turning on suspect items one at a time, and restarting after each change. If the problem still appears to be solved, then it's likely the cause lies with a third-party item. This loads all of the files from Appleeven those that are optional. In that case, restartbut this time, select the Mac OS 9 All set. If the problem disappears, it's likely that the cause was one of the items turned off by this set. When you troubleshoot, it's a good idea to start by selecting this set. The first set loads only those files necessary to start up the Macintosh computer successfully. This process is described in detail in Knowledge Base document 30929, "Mac OS: Extension Conflict Troubleshooting/Extensions Manager Features." Extensions Manager comes with two predefined sets: Mac OS 9 Base and Mac OS 9 All. Using Extensions Manager A chief use of the Extensions Manager is in troubleshooting system extension conflicts. Create customized groups of extensions by duplicating, altering, and renaming existing sets of extensions.Activate or deactivate startup and shutdown items.Turn on optional items in the System Folder.Turn extensions and control panels off or on individually and in user-defined batches.In Mac OS X, the Extensions Manager is in the Control Panels folder, inside the System Folder at the root level of the hard disk. To open Extensions Manager in Mac OS 9, choose Control Panels from the Apple menu, then double-click the Extensions Manager icon. However, Mac OS X still relies on Extensions Manager if you are using Classic mode. Mac OS X does not have the same sort of extensions and control panels as Mac OS 9, so there is no similar utility for managing these types of startup items in Mac OS X. This is often useful in resolving software conflicts in which two items work fine independently but clash when both are loaded. Besides showing you what is present, it also gives you control over which of these elements are loaded at startup. Extensions Manager Extensions Manager is a Mac OS 9 control panel that gives you detailed information about the extensions, control panels, shutdown items, and startup items in the System Folder. ![]() Other Apple Troubleshooting Tools While the tools in the previous section are specific to Mac OS X, some of those in this section are particular to Mac OS 9. ![]()
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