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Circle with line on start-up

257 Views 6 Replies Latest reply: Apr 7, 2013 6:05 AM by putnik RSS
plittleton Calculating status...
Currently Being Moderated
Apr 6, 2013 9:50 PM

When I try to start my machine, the apple logo with progress indicator appears for several minutes and then turns to a Circle with a line through it. ( similar to no smoking symbol). I've tried safe start but to no avail. I'm pretty concerned at this point. :/ thanks for any and all assistance.

MacBook Pro (15-inch Mid 2009), OS X Mountain Lion (10.8.3)
  • mende1 Level 10 Level 10 (89,490 points)
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    Apr 6, 2013 9:55 PM (in response to plittleton)

    It's possible that OS X got damaged or your hard drive is damaged.

     

    Start in OS X Recovery. To do that, hold Command and R keys while your Mac is starting. After starting, open Disk Utility, choose "Macintosh HD" in the sidebar and verify the disk. If it's OK, close Disk Utility and reinstall OS X. If not, repair the disk.

     

    If the disk couldn't be repaired, it's damaged. If you haven't made a backup, you can buy an enclosure for the hard disk in OWC, extract the hard drive and install a new hard disk yourself. You have the steps to do that in iFixit or OWC. After doing that, reinstall OS X on the new hard disk and, after installing OS X, connect the enclosure and recover the data you need from your old hard disk

  • mende1 Level 10 Level 10 (89,490 points)
    Currently Being Moderated
    Apr 6, 2013 10:11 PM (in response to plittleton)

    You have to hold them while your Mac is starting, not when the Apple logo is in the screen

  • mende1 Level 10 Level 10 (89,490 points)
    Currently Being Moderated
    Apr 7, 2013 5:36 AM (in response to plittleton)

    In that case, your Mac doesn't detect Recovery HD. Install a new hard disk or take the Mac to an Apple Store or reseller

  • putnik Level 3 Level 3 (620 points)
    Currently Being Moderated
    Apr 7, 2013 6:05 AM (in response to plittleton)

    You might save a little time by downloading the 10.8.3 GM full installer from MAS onto the other Mac.  Don't run it, but make a copy from the applications folder to somewhere else, as it will delete itself if run from there.

     

    If you have the resources to have a spare external backup disk, then install the OS onto that and copy the installer itself over too.  Carbon Copy Cloner (CCC) can be used to transfer this to any new disk on the computer and later to maintain an up-to-date clone of your system.  Also, it can be used to run diagnostics and to make erase/installs on the computer, should things go really bad.

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