Mac stuck on white screen after booting.

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Level 1

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Mac stuck on white screen after booting.

My Mac boots and after the spinning wheel at apple logo vanishes it gets stuck on white screen..

I was running the following commands in terminal when my mac froze and I had to restart it.. After that it is on the white screen..

The commands I ran :

cd Applications

cd XAMPP/xamppfiles/htdocs/experiment

ls -l

sudo chmod 0644 /

And after that my Mac froze and I had to force restart by holding the power button.. After restart its stuck on white screen just before the login screen.

Mac mini, OS X Mountain Lion (10.8.5)

Posted on Jan 28, 2014 6:49 AM

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Answer 1

rkaufmann87

Level 10

140,436 points

Jan 28, 2014 8:39 AM in response to iampranav

Please read Apple's advice on how to trouble shoot this, go through each step methodically and if none help you will need to schedule a trip to the Apple Store or an AASP.

http://support.apple.com/kb/ts2570

Good luck.

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Answer 2

keg55

Level 6

11,743 points

Jan 28, 2014 10:19 AM in response to iampranav

Are you able to boot into the Recovery HD (Command+R). You may need to do a Repair Permissions in Disk Utility. My UNIX isn't very good but that sudo command appears to affect the whole drive at the root level.

If you can't get to the Recovery HD, then maybe try Internet Recovery (command+option+R).

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Answer 3

Linc Davis

Level 10

209,541 points

Jan 28, 2014 10:20 AM in response to iampranav

You corrupted the permissions of the root directory. If you know how, boot into single-user mode and change the mode to 755. Otherwise, reinstall OS X.

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Answer 4

iampranav Author

Level 1

0 points

Feb 2, 2014 9:22 PM in response to rkaufmann87

Thanks for your reply..

I followed every step in that article but eventully nothing turned good.. so I had to reinstall OSX

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Answer 5

iampranav Author

Level 1

0 points

Feb 2, 2014 9:27 PM in response to keg55

I am able to boot in Recovery HD.. did the repair permissions but that sudo command had affected the entire drive.. Reinstalling was the only option left..

Although I had to do

sudo chmod 0644 /Applications/XAMPP/xamppfiles/htdocs

but ended up pressing the return key just after the first "/" 😟

Thanks for your help. 😀

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Answer 6

iampranav Author

Level 1

0 points

Feb 2, 2014 9:33 PM in response to Linc Davis

Although I had booted into single user mode (Command + S) to repair drive using "fsck -fy" command but changing the permissions using chmod didn't strike me :/ I could have been saved from reinstalling the OS..

Anyway now I have reinstalled and recovered my data...

Thanks you very much for the help... at least if it happens again I know what to do now.. 😀

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