iMac Issue Please Help

Discussion in 'iMac' started by loganfcb, Sep 20, 2017.

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  1. loganfcb macrumors newbie

    Joined:
    Sep 20, 2017
    #1
    @Weaselboy I saw a post where you were helping people with a similar issue well over a year ago and wanted to see if you could help me or anyone else who is reading this. I have an iMac, I wanted to completely wipe the computer and start fresh. I went to Disk Utilities upon reboot, like an idiot I think I deleted something but I cannot figure out what I deleted. Anyways, I tried Reinstall OS X, it tells me that OS X Base system and it is saying that "This disk is locked." I additionally tried Internet recovery and after the globe where it loads up it goes to a screen with the apple logo and does nothing (waited for hours upon hours to no avail.) Thank you for your help!
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    So you can command-r boot regular recovery, but Internet recovery does not load up?

    Go back to regular recovery and in the Utilities menu start Terminal and run each of the two commands then tell me the output of each.

    Code:
    diskutil list
    
    diskutil cs list
     
  3. loganfcb thread starter macrumors newbie

    Joined:
    Sep 20, 2017
    #3
    Correct, Internet Recovery does not load up.

    [-bash-3.2# diskutil cs list
    No CoreStorage logical volume groups found


    [-bash-3.2# diskutil list
    /dev/disk0 (internal, physical):
    #: TYPE NAME SIZE IDENTIFIER
    0: GUID_partition_scheme *500.1 GB disk0
    1: EFI EFI 209.7 MB disk0s1
    2: Apple_HFS OS X BASE SYSTEM 499.2 GB disk0s2
    3: Apple_Boot Reocovery HD 650.0 MB disk0s3

    The rest go as follows (disk 1-13 are the same except the size is different for each):
    /dev/disk1 (disk image):
    #: TYPE NAME SIZE IDENTIFIER
    0: untitled +5.2MB disk 1
     
  4. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #4
    I thought maybe you had FileVault encryption turned on, but that is not the case.

    It worries me that Internet recovery will not even come up. Even if you had a bad drive, Internet recovery should still work.

    What prompted you to do this? What symptoms did it have?

    All those little drive listed are virtual RAM drives the installer uses, and normal. They disappear when you reboot.

    I'm logging off shortly, so will check in with you in the morning.
     
  5. loganfcb thread starter macrumors newbie

    Joined:
    Sep 20, 2017
    #5
    I was not having any symptoms. I had all types of software and files on the computer from my previous drive and just wanted to start fresh. It was working flawlessly. Like I previously stated when I try the internet recovery it goes onto the screen with the globe and it loads in all of the way in the status bar. It then goes to a screen with an apple logo and does nothing.
     
  6. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #6
    Do you have access to another Mac that you could download the OS onto and make a USB installer?
     
  7. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #7
    OP:

    If you read Weaselboy's post 6 above this one, this is your best way forward.

    You need a USB flash drive with a bootable copy of the Mac OS installer on it.

    Then you can reinstall the OS onto the Mac.
    You can also erase the drive first if you wish, but be aware that if you do this, EVERYTHING on it will be gone. You'll be "starting over".

    If you don't have a copy of the OS, can't get one on your own, there's another way:
    Go to eBay. There are sellers there who will sell you a USB flash drive with a copy of the Mac OS version of your choice "pre-installed" on it. Just connect the flash drive to your Mac, boot, and off you go.

    If you are getting nowhere, the "eBay solution" might just be your best one.

    One last thought.
    In your post above, you said that before you started fooling with the Mac that it was "working flawlessly".
    There's a lesson here.
    "If it ain't broke, don't 'fix' it".
     
  8. rpmurray macrumors regular

    Joined:
    Feb 21, 2017
    Location:
    Back End of Beyond
    #8
    And really, if you go this route, your chances of getting an installer that's been modified to install malware is less than 50%.
     
  9. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #9
    "And really, if you go this route, your chances of getting an installer that's been modified to install malware is less than 50%."

    I doubt many of the ebay sellers who make these things would be in business long if they became known suppliers of malware.

    If the OP hasn't the ability to solve the problem by himself (i.e. create a bootable installer), he may have no other realistic course of action by which to obtain a bootable USB flash drive to use to get going again.

    I've had fewer problems with Mac OS software obtained from "unauthorized downloading sites", than I've had trying to get the same installers from Apple...
     

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8 September 20, 2017