Macbook Air booting with question mark and folder

Discussion in 'MacBook Air' started by Kashyap Pavra, Apr 16, 2016.

  1. Kashyap Pavra macrumors newbie

    Kashyap Pavra

    Joined:
    Apr 16, 2016
    #1
    Hello people I am in a big trouble my mac is booting with a question mark and a folder.

    The story starts when I installed Linux in my mac with 20GB linux partition and 100 GB mac os x El capitan partition. Then I felt Linux is boring so I decided to delete it.So I just deleted the partition from Disk Utility.Where I got a recovery HD but it was not merging with the main drive.So I restarted my mac and Here I got this thing with question mark and a folder on booting.

    I have a linux usb drive which might help.
    So please help me recovering this thing and I also dont want to lose any of my data on my mac please help
     
  2. tentales macrumors 6502a

    tentales

    Joined:
    Dec 6, 2010
    #2
    You just learned the lesson not to experiment with your primary system if you don't know what you're doing.
    You probably deleted the wrong partition and you didn't create a backup on a bootable external drive first.
    Your data might still be salvageable, but first you need to do an internet recovery:

    Hold
    Command+Option+R

    AFTER power on and proceed with instructions.
     
  3. Kashyap Pavra thread starter macrumors newbie

    Kashyap Pavra

    Joined:
    Apr 16, 2016
    #3
    Thanks for your reply but after getting into internet recovery will my mac download a whole new os.??
    If yes then how much internet data will be used and if no then what will happen in internet recovery and how much internet data will it consume?
    --- Post Merged, Apr 16, 2016 ---
    Thanks for your reply but after getting into internet recovery will my mac download a whole new os.??
    If yes then how much internet data will be used and if no then what will happen in internet recovery and how much internet data will it consume?
     
  4. tentales macrumors 6502a

    tentales

    Joined:
    Dec 6, 2010
    #4
    It only downloads into memory and gives you access to Disk Utility, Terminal, etc.
    From that point you can try to access the drive and make adjustments.
    You'll have to do your own diagnosis on what you did to your working system and research online for a remedy.
    Here's a start:
    http://www.theinstructional.com/guides/disk-management-from-the-command-line-part-1
    https://support.apple.com/en-us/HT201314

    If all of this is too overwhelming and you're afraid you'll do more damage, I suggest take it to an AASP https://locate.apple.com/country
    and go from there.

    Good luck.
     
  5. Kashyap Pavra thread starter macrumors newbie

    Kashyap Pavra

    Joined:
    Apr 16, 2016
    #5
    Do you have any idea how much data will it use because I dont have a wifi so I will be downloading it from my mobile wifi hotspot?
     
  6. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #6
    There are two stages to this. When you first command-option-r boot to Internet recovery, you will be asked for your wifi password then a 650MB recovery utility will be downloaded and launched in RAM. That gives you Disk Utility etc so you can format your disk. Then in that utility you will click reinstall OS... and that will download and install the OS for you. That second download of the OS is about 7GB.
     
  7. Kashyap Pavra thread starter macrumors newbie

    Kashyap Pavra

    Joined:
    Apr 16, 2016
    #7
    Thankyou for the reply
    --- Post Merged, Apr 16, 2016 ---
    I have the OS and I am going to install it but I need to backup my data,so how can I back up even if I its not even booting?
     
  8. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #8
    What you can try to do is when you get to that recovery screen from Internet recovery, start Disk Utility then if the Macintosh HD volume is still there you may be able to copy it to an external drive using the restore menu choice under the Edit menu. So select the external drive you want to copy it to then select restore in the menu, then select Macintosh HD as where you are restoring from. It should look like this if your external drive is called Backup like in my example. Then click restore and that should copy Macintosh HD to the external drive where you can try and recover data after you install the OS.

    Screen Shot 2016-04-16 at 12.22.49 PM.png
     
  9. Kashyap Pavra thread starter macrumors newbie

    Kashyap Pavra

    Joined:
    Apr 16, 2016
    #9
    I will be not installing OS from internet,It will be from a bootable CD/USB then will I be able to get into disk utility?
     
  10. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #10
    You can access Disk Utility the same way form the startup screen after you boot from the USB key.
     

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