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Apple Computing Products:
macOS - Operating System
Crash when installing Mountain lion
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<blockquote data-quote="cwa107" data-source="post: 1433668" data-attributes="member: 24098"><p>Did you do any prep on your Mac before attempting to install? There's a bit of maintenance to do before you get started. In particular...</p><p></p><p>1) Back up. If you haven't already done this, then set aside plans to upgrade until you can.</p><p></p><p>2) Run basic disk maintenance in Disk Utility. Select Macintosh HD in the left pane and then the First Aid tab on the right pane. Run Verify/Repair Disk and Verify/Repair Permissions.</p><p></p><p>3) Download <a href="http://pagesperso-orange.fr/joel.barriere/dl/107/OnyX.dmg" target="_blank">Onyx</a> and run the tasks under the Automation tab.</p><p></p><p>4) Download <a href="http://metaquark.de/appfresh/mac" target="_blank">AppFresh</a> and get your third-party, non-Mac App Store apps up to date.</p><p></p><p>5) If all else fails, check the <a href="http://www.mac-forums.com/blog/os-x-mountain-lion-the-mac-forums-guide/" target="_blank">Mac-Forums Mountain Lion Guide</a> for details on doing a clean install.</p></blockquote><p></p>
[QUOTE="cwa107, post: 1433668, member: 24098"] Did you do any prep on your Mac before attempting to install? There's a bit of maintenance to do before you get started. In particular... 1) Back up. If you haven't already done this, then set aside plans to upgrade until you can. 2) Run basic disk maintenance in Disk Utility. Select Macintosh HD in the left pane and then the First Aid tab on the right pane. Run Verify/Repair Disk and Verify/Repair Permissions. 3) Download [URL="http://pagesperso-orange.fr/joel.barriere/dl/107/OnyX.dmg"]Onyx[/URL] and run the tasks under the Automation tab. 4) Download [URL="http://metaquark.de/appfresh/mac"]AppFresh[/URL] and get your third-party, non-Mac App Store apps up to date. 5) If all else fails, check the [URL="http://www.mac-forums.com/blog/os-x-mountain-lion-the-mac-forums-guide/"]Mac-Forums Mountain Lion Guide[/URL] for details on doing a clean install. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Crash when installing Mountain lion
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