Page 2 of 2 FirstFirst 12
Results 16 to 21 of 21
  1. #16
    New SSD install wont boot (iMAC 2012)
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,149
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Quote Originally Posted by chscag View Post
    Internal yes, external no. He was also trying to boot with the drive externally. Also, remember this was a replacement drive, not original. As stated, the drive failed the First Aid test. That would be my first concern.
    Right, so when they first formatted the drive, in an external enclosure, and tested it, it worked, even though it was formatted as Mac OS Extended. Then, when they installed it internally, it didn't work, because the formatting was Mac OS Extended and not APFS. I don't understand what "replacement vs original" drive has to do with anything?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  2. #17
    New SSD install wont boot (iMAC 2012)
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    56,599
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, Mojave
    I don't understand what "replacement vs original" drive has to do with anything?
    Because I don't believe Apple forced APFS on a drive that was a replacement for the original even though the replacement is a SSD. Although, I admit you may be right. But why would it fail? It should have checked okay with First Aid. I think he's dealing with a drive that may be defective. I guess we'll have to wait until he get's back to us.

  3. #18
    New SSD install wont boot (iMAC 2012)
    iggibar's Avatar
    Member Since
    Apr 20, 2009
    Location
    Cleveland
    Posts
    4,111
    Your Mac's Specs
    6.1 Mac Pro, 5.1 Mac Pro, 15" MBP, 13" MBP, 17" PB, PM G5, Apple Watch 42mm
    The code 8 means there are corrupted files that can't be fixed. WD drives are notorious for these problems!

    Also, for general knowledge to anyone reading, disk First Aid actually has 3 stages that it can function in.
    -First, the First Aid running while the OS is also running. Not all disk repairs are possible while the operating system is running because it can cause system crashes.
    -Second, you run First Aid in recovery safe mode to check system while operating system is down.
    -Third and most hard-core, you run FSCK(File System Check) command in the single user mode terminal. FSCK can find critical system errors and fix them.
    FSCK command sounds complicated, but is actually really simple.

    If these 3 stages can't fix a corrupt drive, it's time for a replacement.

    Since the error from the OP stated "file system check exit code 8", you will need to run FSCK command in the single user mode terminal to attempt to fix it.
    Call me IGGI
    “If you are distressed by anything external, the pain is not due to the thing itself but to your own estimate of it; and this you have the power to revoke at any moment.” Marcus Aurelius

  4. #19
    Quote Originally Posted by iggibar View Post
    The code 8 means there are corrupted files that can't be fixed. WD drives are notorious for these problems!

    Also, for general knowledge to anyone reading, disk First Aid actually has 3 stages that it can function in.
    -First, the First Aid running while the OS is also running. Not all disk repairs are possible while the operating system is running because it can cause system crashes.
    -Second, you run First Aid in recovery safe mode to check system while operating system is down.
    -Third and most hard-core, you run FSCK(File System Check) command in the single user mode terminal. FSCK can find critical system errors and fix them.
    FSCK command sounds complicated, but is actually really simple.

    If these 3 stages can't fix a corrupt drive, it's time for a replacement.

    Since the error from the OP stated "file system check exit code 8", you will need to run FSCK command in the single user mode terminal to attempt to fix it.

    So everything I have tried with APFS and an external USB installer has failed.

    - I was able to boot into single user mode and run FSCK and everything came back with `status ok`.
    - I ran First Aid and everything comes back `operation successful`
    - Looking at this https://support.apple.com/en-us/HT208496
    I am going to format my internal SSD Mac OS extended, then boot in recovery mode and restore from a Time Machine backup. According to the link, the installer will determine to convert to APFS, if needed....thoughts?

    ***NOTE***
    The Time Machine backup is from the same SSD, but when I using it in an external enclosure via USB.

  5. #20
    Unfortunately nothing has worked. My thought at this point is to buy a new SSD drive and try again. I started with an external SSD that I was booting to and using as my primary OS for several weeks. I placed that drive into a 2.5" - 3.5" mount so it could be installed internally. Before mounting the SSD in the iMac, I verified that I could boot to it via a SATA to USB cable on my MBP.

    Could it possibly have anything to do with the SATA cable? I can still see it and read/write to the disk. I just cant seem to get any macOS to load and boot. I have tried both High Sierra and Mountain Lion.

    I have tried:
    a time machine backup (both drives formatted macos extended)
    - Internet recovery Install option
    - Bootable USB drive -> formatted (APFS) SSD
    - Bootable USB drive -> formatted (macOS extended) SSD
    - I ran FSCK and First Aid and received success/ok
    - When I recently ran verify option, i received an error that it could not complete


    Anything that I am missing before I pull the panel off and replace it with another SSD?
    Attached Images Attached Images
    Last edited by jaykim; 11-07-2018 at 10:20 PM.

  6. #21
    New SSD install wont boot (iMAC 2012)
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
    Posts
    4,727
    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
    Well, from that screenshot it looks like you are booted from "Backup HDD" as that is mounted at "/" and none of this is using APFS. The filesystem of the SSD is Journaled HFS+, which is what you should have. But that drive is empty. You have 494.86GB of 499.76GB available, which means it's basically got nothing on it. That's probably why it won't boot. Nothing there to boot. You said you can read and write to it, so there is nothing hardware that should be blocking it from booting, if it had a system on it.
    Jake

Thread Information

Users Browsing this Thread

There are currently 3 users browsing this thread. (0 members and 3 guests)

Similar Threads

  1. Blue Screen of Death during win 7 pro boot camp install on early 2012 MBP
    By infantryron in forum macOS - Operating System
    Replies: 4
    Last Post: 09-14-2016, 09:50 PM
  2. 2011 i7 iMac wont boot OSX and wont boot off USB
    By KawiNinjaZX in forum Apple Desktops
    Replies: 18
    Last Post: 01-08-2016, 11:56 AM
  3. Install Disk wont boot
    By Fpoole in forum Apple Notebooks
    Replies: 1
    Last Post: 02-28-2011, 09:06 PM
  4. mac pro wont boot after hd install
    By koolchris99 in forum Apple Desktops
    Replies: 0
    Last Post: 01-08-2010, 06:26 AM
  5. Replies: 2
    Last Post: 01-14-2008, 04:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •