Bad update 10.10.2 will not boot

Question

Bad update 10.10.2 will not boot

After installing 10.10.2 security update, computer boots to gray screen with Apple logo & progress bar that stops 2/3 of the way. I've logged into recovery & re-installed the OS & still doesn't work.

Im almost positive I don't have a bad HD after looking through all the posts with the same issue. I'm willing to do anything I can to retain my data. I've learned my lesson, but I need a solution.

What can I do?

Would this work:

Hook up an external drive & clone the internal drive to the external with disc utility.

Remove the internal drive & install the external

Re-install OS

Would this work? Or what should I do?

thanks,

matt

Posted on Mar 26, 2015 3:42 PM

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Answer 1

rkaufmann87

Level 10

140,550 points

Mar 26, 2015 3:58 PM in response to blind visionary

Your download or install may have been corrupted. Try to boot into the Recovery Partition and reinstall OS X from there and then re-boot. Another option is to attempt to boot into Safe Mode, see if your computer will do that.

Recovery Partition is Command + R on startup

Safe Boot is hold down Shift key on startup

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Answer 2

Mar 26, 2015 6:48 PM in response to rkaufmann87

got into Internet recovery, but it won't let me install "lion", says I can't upgrade this version of Mac os x because a newer version is installed.

what do you think?

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Answer 3

Mar 26, 2015 7:34 PM in response to rkaufmann87

not sure why it says that solved my issue, but I still need some assistance.

thanks for any guidance rkaufmann87

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