I accidentally deleted my mac hard drive and my mac won't work

Discussion in 'Mac Basics and Help' started by Cybrax-etc, Sep 24, 2017.

  1. Fishrrman macrumors G5

    Fishrrman

    Joined:
    Feb 20, 2009
    #26
    OP asks:
    "Since Apple made a promise to free upgrades the new os are free, so i was wondering if could make a bootable El Captain or Yosemite installer instead of paying for lion?"

    The answer is "yes".
    But you need another, working Mac on which to do it.
     
  2. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #27
    My friend has a macbook pro, so any instructions?
     
  3. Fishrrman, Oct 1, 2017
    Last edited: Oct 1, 2017

    Fishrrman macrumors G5

    Fishrrman

    Joined:
    Feb 20, 2009
    #28
    "My friend has a macbook pro, so any instructions?"

    1. Download "Install Disk Creator".
    2. Put the Mac OS installer app on the macbook pro, along with IDC.
    3. Have USB flashdrive of 16gb (or larger) ready, initialized to HFS+ with journaling enabled.
    4. Launch IDC. Select installer file and select target drive (USB flashdrive)
    5. Let it run (will take a little while)
    6. When done, take USB flashdrive to troubled Mac.
    7. Connect flashdrive, press power on button
    8. IMMEDIATELY hold down the option key and KEEP HOLDING IT DOWN
    9. Startup manager will appear.
    10. Select USB drive with pointer and hit return
    11. Mac should boot to installer app.
    12 Install from there.

    PRINT THIS OUT and keep it with you.
     
  4. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #29
    I have

    My friend has regular sierra and I'm trying to install El Captain its saying the mactonish hd is the newest version.
    I don't want sierra or high sierra because they take to much ram. Any way to get el captain installer?
     
  5. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #30
    I think you are incorrect about RAM usage in Sierra, --- but you can get the El Capitan from the App Store, if that's what you want.
    Here's a link...
     
  6. gnasher729 macrumors P6

    gnasher729

    Joined:
    Nov 25, 2005
    #31
    The only solution for anyone who wants to recover their data and have no backup is (1) kick yourself for not having a backup, (2) stop touching your Mac and get professional help.

    The solution for anyone who doesn't want to get into that situation is to use reliable backup, for example Time Machine. Then you can use Internet recovery mode. You might consider instead getting a new hard drive first, especially on a 2011 Mac. That hard drive is six years old. All hard drives _will_ fail eventually.
     
  7. Cybrax-etc, Oct 2, 2017
    Last edited: Oct 2, 2017

    Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #32
    I went to that link and can't install installer on macbook pro because its running regular sierra.
    Its Saying mactonish hd is running the newest version.

    My Plan: Create a El Captain bootable usb drive and use that to do clean install of el captain to the iMac
     
  8. Cybrax-etc, Oct 2, 2017
    Last edited by a moderator: Oct 2, 2017

    Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #33

    Created a bootable usb high sierra and left for like 10 mins and came back and this is happenning
    Any ideas on whats happenning?


    Video:
     
  9. hallux macrumors 68030

    hallux

    Joined:
    Apr 25, 2012
    #34
    That's because you don't run the installer. One way to create the USB was explained earlier and step #1 after downloading it was to quit the installer when it opens.

    Here is Apple's official page on how to create the install media: Create a bootable installer for macOS - Apple Support
     
  10. hallux macrumors 68030

    hallux

    Joined:
    Apr 25, 2012
    #35
    @Cybrax-etc it's REALLY hard to tell from that video, it doesn't really show much but the spinning color wheel (or "beachball"). Did you use the application previously suggested? That app may not support creating a High Sierra disk, or may not support that OS as the "host" for creating the drive. Apple's command line (which I posted above) may work more reliably.
     
  11. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #36
    What you said is the only thing there on the mac. I followed a tutorial from 9to5mac on youtube.

    This is what I watched:
     
  12. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #37
    If you have no backups the LAST thing you want to do is install any software or doing any writing to the disk.

    Take the disk drive out of the computer and put it some place safe. Now is the time to upgrade the disk drive. A small SSD costs only about $100. Reinstall the OS on the new drive but do NOT write anything to the old drive as doing so will overwrite the data you deleted and make recovery impossible.

    Once you have a working computer, ask here about data recovery.
    --- Post Merged, Oct 2, 2017 ---
    I'd say "no", You wrote a copy of Max OS all over your data. There might be little bits of it left

    What happens when you "delete data" is the data is not erased but it is but back on the "heap" if disk blocks that may be used for new data. It is not over written until those blocks are actually used by new files. Writing a new OS to the drive created literally a million files, many of them reusing blocks that contained your old data.
    --- Post Merged, Oct 2, 2017 ---
    Yes exactly. After an error like that the best thing to do is turn the power off and remove the disk drive from the MacBook. At that point the data will be easy to recover. Get a brand spanking new SSD for the Mac and an empty USB disk drive enclosure for your old disk.

    I recently replace an old hard drive with an SSD in a 2011 MBP and the performance difference is dramatic. Will worth the money.
     
  13. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #38
    Thanks everyone my iMac is fine and I have high sierra perfectly working
    This Forums I guess ends. Thank you everyone :)
     
  14. KaleyMarie24 macrumors newbie

    KaleyMarie24

    Joined:
    Jan 30, 2018
    #39
    I think I did this too :( Can you tell me what you did to fix it? I took my computer to the Apple Store and they suggested a Hard Drive replacement, which didn't work. I deleted some important files on accident, but not sure exactly what. :(
     
  15. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #40
    Boot from the recovery partition. (Hold "Command R" while booting.) you will be given to option to restore from a Time Machine disk. It is simple but it will take some time to coy all the data back from the TM disk.

    If you don't have a TM disk (why?) then all you can do is restore the basic operating system and yo will have to restore your data using whatever backup software you use.

    No backup? There are data recovery service who can get the data off the disk. They are not inexpensive.
     
  16. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #41
    Sorry for the late reply but the only way I could fix this was by getting making a bootable flash drive and reinstalling Mac OS via USB drive. This deletes all your data though! If you want I can send a good tutorial on how to do this.
     
  17. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #42
    Thought I would point out that a simple "Reinstall macOS" does NOT erase the drive, unless you choose to do that first. I assume that the tutorial that you made, includes doing that. Erasing the drive would not normally be needed, unless you are having OTHER problems with the drive.
     
  18. Cybrax-etc thread starter macrumors member

    Cybrax-etc

    Joined:
    Sep 24, 2017
    #43
    True but for the problem i had to perform a clean reinstall. Thanks for the links you provided when i encountered this issue. (The tutorial i was talking about was made by 9to5mac)
     
  19. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #44
    Disk Warrior sells a bootable disk that lets you recover "deleted" volumes, after which you can use Internet Recovery to reinstall OS X that retains your existing data.
     
  20. Dodgeman macrumors 65816

    Joined:
    Nov 30, 2016
  21. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #46
    This thread covers what you need to do.
     
  22. Dodgeman macrumors 65816

    Joined:
    Nov 30, 2016
    #47
    Its weird because I just tried to delete everything and reinstall the OS. Upon the reinstall I realized I did not delete anything.
    So actually deleted every single thing and then I am reinstalling MacOS again.
     
  23. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #48
    That really depends on what you did to "delete everything"
    If "delete everything" means that you erased the drive in Disk Utility, then reinstalled macOS, then everything would truly be gone. Even normal file recovery software would be unlikely to find anything, other than a few files - maybe. Your directory structure, folders, etc, would certainly be gone.
    If you simply dragged files to the trash, then everything would still be in the trash - nothing would be gone.
    Disk Utility is your main tool for "nuking" your drive. If you did not use Disk Utility (or some of the other good disk tools that are often used on Windows PCs) to erase your drive first, then you may want to try again.
     
  24. Okiemute_onome macrumors newbie

    Okiemute_onome

    Joined:
    May 26, 2018
    Location:
    Nigeria
    #49
    --- Post Merged, May 26, 2018 ---
    --- Post Merged, May 26, 2018 ---
    I erased the internal phy
    i erases the internal physical disk on my computer, and this is what popped up, please I am confused and need help
     

    Attached Files:

  25. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #50
    You need to reboot the mac into recovery mode, i.e., turn off the Mac.Turn it on and hold the cmd key and the r key down at the same time.

    Please see apple's KB article on this:
    https://support.apple.com/en-us/HT201314
     

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