Mac OSX Sierra Prohibitory sign

Adrian_88

macrumors newbie
Original poster
Mar 31, 2017
3
0
Hello bro, recently i faced a message error that says there is not enough free space in the disk when i was trying to download a document from my email even though i have had tons of it, like around 100gb. I have a macbook pro with osx sierra, the latest version. So I looked up the internet and somehow they told me to change some permissions on the download file and restart the computer. However, after doing so, my computer is now faced with a prohibitory sign that wont boot up. I havent done anything to it like a PRAM reset because I am afraid that I would lose my data as some of my friends have pointed out. Anyway, i can still access internet recovery and disk utility still showing all my datas available, just that when i clicked on the info, i saw under its bootable category, it says no. Is if something to do with permission repair, i have yet to verify my disk utility as im very scared to do anything that would erase my data. What do i do? Thank you
Please help me out
 

KoolAid-Drink

macrumors 65816
Sep 18, 2013
1,427
408
USA
It might be that your HD is failing. Try turning on the computer and pressing COMMAND and S at the same time, then see what happens?

If you make it to the prompt, type: fsck -fy

Alternatively, boot from recovery or another HD (USB or whatnot) that has macOS or the installer, then see if it is able to read your HD.
 

Adrian_88

macrumors newbie
Original poster
Mar 31, 2017
3
0
I
It might be that your HD is failing. Try turning on the computer and pressing COMMAND and S at the same time, then see what happens?

If you make it to the prompt, type: fsck -fy

Alternatively, boot from recovery or another HD (USB or whatnot) that has macOS or the installer, then see if it is able to read your HD.
i am able to read it
 

Fishrrman

macrumors Core
Feb 20, 2009
19,700
6,868
Download the free, small utility called DiskWave:
https://diskwave.barthe.ph

Just launch it.
You'll see what to do next.
TIP: choose to make normally-inivisible files VISable.

It will show you what's eating up the space on your drive.
 
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