When good Macs go bad: Steps to take when your Mac won't start up
#1
Posted 11 December 2012 - 03:30 AM
#2
Posted 11 December 2012 - 05:18 AM
#3
Posted 11 December 2012 - 05:18 AM
This article is going directly into Evernote and syncing to all my devices!
#5
Posted 11 December 2012 - 05:41 AM
#6
Posted 11 December 2012 - 06:19 AM
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Crashing Macs are serious business. I injected a tiny stroke of levity for those who noticed. I am deadly serious about resurrecting dead Macs.
#7
Posted 11 December 2012 - 07:02 AM
Amongst other things, you should never "Fsck for fsck’s sake". More data is lost from the repeated running of fsck, than any other step. Brute force recovery of data is lunacy.
#8
Posted 11 December 2012 - 07:27 AM
That being said, while I won't be as harsh as the previous poster, I will say thanks for giving an overview of steps that users like myself can take a deeper dive into and integrate into our own troubleshooting skill-sets.
#9
Posted 11 December 2012 - 07:34 AM
Be sure to get back to us with the final result. Disk Utility is not always wise about hard drive health. I'd be curious if the logic board replacement actually does fix the issue.
In this case, I'd have recommended booting and running from an external drive. If it's the logic board, you'd see the same issues.
#10
Posted 11 December 2012 - 08:02 AM
Perfect JimB. This is what I would do FIRST. Since booting off of an external drive will help rule out/in hardware it also allows you to recover data just-in-case.
#11
Posted 11 December 2012 - 08:22 AM
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Yup, Macworld just trolled us.
This post has been edited by technologist: 11 December 2012 - 08:23 AM
#12
Posted 11 December 2012 - 08:57 AM
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Well that's a good thinking but in my case, the (internal) HD wasn't available. So no luck with the "allows you to recover data just-in-case" part.
BTW Lex, booting-up from a USB drive, trying to run Disk Utility on the "drive’s friendlier name" which is grayed-out... What does that tell you? I can run DU but it takes, like, forever (had to cancel it after an hour and a half). DU just displayed the barber-pole without ever kicking-in the progress bar...
#13
Posted 11 December 2012 - 09:30 AM
/sbin/mount -uw
Not sure what it does exactly, but OS X's instructions say to do it. It's right there on the single user mode screen.
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity. - Martin Luther King, Jr.
#14
Posted 11 December 2012 - 10:16 AM
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Well in all fairness if there are mechanical issues (ie it won't even spin up) software is not going to fix it regardless. I use DataRescue software to recover data even if the volume won't mount, but if it doesn't spin then you get to spend thousands...
But continuing to try and boot off the screwed up disk isn't what I would consider the prudent choice, unless there is no other option available to you.
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