stuck 'still waiting for root device' (with picture )

Question

stuck 'still waiting for root device' (with picture )

my macbook pro is 2011 late one ... and recently i found out some program is keeping use my ram, so i decided to reinstall and erase all thing .

so i can boot into chosing preference language, press reinstall OS X then i stuck in loading information ... it is kept running but .... no luck until a 24 hrs on ....

then i tried NVRAM reset... same result .... and press sth wron (CMD + S ) to start ... then sth like dos running as follow ...hope anyone can help

Posted on Jul 5, 2014 1:10 AM

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Answer 1

Linc Davis

Level 10

209,739 points

Jul 5, 2014 9:31 AM in response to Community User

Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional—ask if you need guidance.

If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.

Keeping your confidential data secure during hardware repair

Apple also recommends that you deauthorize a device in the iTunes Store before having it serviced.

*An SSD doesn't need to be zeroed.

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