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Major Problems Post-Mountain Lion Installation

Just downloaded mountain lion to my iMac, all correct specs (memory, etc.). Upgraded from snow leopard 10.6.8. All went smooth until the installation was complete. The start-up wheel never stopped spinning; waited at least 20-30 min. So I shut down the computer, and once I restarted mountain lion launched fine. However, now I get the colored spinning wheel of death (WOD) with every operation, and the computer runs like molasses. Even the simplest task like moving a file on the desktop from one location to another gets the WOD going, and takes forever. Any ideas? Can I reinstall mountain lion and try again?

iMac, OS X Mountain Lion (10.8.2)

Posted on Jan 27, 2013 10:35 AM

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Posted on Jan 27, 2013 11:06 AM

You can try a safeboot and see if it sorts any problems then restart as normal.


Yes you can hold the commad -R on restart to get to Recovery and reinstall ML on top of what you have,

7 replies

Jan 27, 2013 12:42 PM in response to leroydouglas

Another follow-up if you don't mind. Do you think performing a "hard shut down" with the on-off button after the installation was complete had any impact on the installation? Recall after the installation was complete the start-up wheel wouldn't stop spinning and launch mountain lion, so I performed a hard shut down. Mountain Lion seems to be working fine, but just always concerned about hard shut downs. Is there another way to shut down using a safer method if your computer freezes or have chronic WOD?

Jan 27, 2013 12:56 PM in response to leroydouglas

Yes, quick search indicates no other way if your computer is stuck. But I just read this as a safe guard:


"After a hard reset, the system will not perform any automatic diagnostics such as checking the file system for inconsistencies, so you might consider taking the initiative to perform these checks yourself the next time you turn on the system. One easy way to do this is to immediately boot into Safe Mode by holding the Shift key during the next start-up, which will run a drive verification and repair in addition to other maintenance tasks. When the system finally boots, log in and run Disk Utility's drive verification to check the hard drive for errors an additional time, and if there are no problems, then restart normally."


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by Topher Kessler


Major Problems Post-Mountain Lion Installation

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