fixed : MacBook Pro hangs during final stage of macOS startup

Question :

I have macOS 10.14 Mojave installed on my MacBook Pro ‘Mid 2012’, but every time I try to start up my Mac, it hangs when the progress bar (on the white startup screen with the Apple logo) is at 99%…

On the TechRadar-website I found some startup key-combos to try : https://www.techradar.com/how-to/computing/apple/how-to-use-os-x-boot-options-to-troubleshoot-your-mac-1305645

I have tried the following, but it didn’t help :

  • restarting my MacBook
  • zapping the PRAM / NVRAM
  • running Disk First Aid in Recovery Mode
  • running Disk First Aid from another Mac while in Target Mode
  • reinstalling macOS Mojave from Recovery Mode
  • reinstalling macOS Mojave from a USB installer

So far, no problems where found, but the exact same problem keeps occuring :

When I startup my MacBook Pro, the progress bar goes quickly to 50%, then slows down but still keeps progressing up to 99% or even 100% and then hangs…

What can I do to solve this ?

 

Answer :

You have already tried most of the options that usually give success when you encounter these types of problems, so you have little options left to choose from.

The first thing to try would be ‘Verbose Mode’ so you will be able to figure out what problems are encountered during startup :

  • shut down you Mac using the power button
  • startup your Mac in Verbose Mode by pressing the [CMD]+[V] keycombo on your keyboard during startup
  • now, your Mac starts up without a GUI (Graphic User Interface) but just displays lines of code (like in the Terminal.app and Console.app)
  • note that you might see a screen of code flashing by and than face your regular inlog screen… if so, just login and you will get to the Console-like black screen with white lines of code…
  • wait for the lines of code to halt and see what error messages are displayed in the final lines of code
  • if the error is “too many corpses being created”, use the solution outlined below (additional error terms are “Process”, “crashed:” and “opendirectoryd.”)
  • if you get any different error message : lookup the error message and the solution on the internet

The solution to the “too many corpses being created” startup-error :

  • shut down your Mac using the power button
  • startup your Mac in Recovery Mode by pressing the [CMD]+[R] key combo on your keyboard during startup
  • if FireVault is on, mount the HardDisk by clicking Disk Utility.app and then typing your password
  • then, go to Utilities in the top menu bar and click Terminal in the pulldown menu
  • in Terminal.app type this line of code (in which “Macintosh\ HD” is replaced by the name your have given your HardDisk ; the default name is “Macintosh HD”, and note that all spaces in the name of your HardDisk should be replaced by “\ ” (a backslash + a space) when typing these lines of code) :

cd /Volumes/Macintosh\ HD/var/db/caches/opendirectory

  • then press the [Enter]-key to run the code
  • when the cursor returns on the very next line you’re good, if you get an extra line in between, you’ve run into an error (e.g. “command not found” usually means you mistyped something, so you should just try again ; if you forgot to replace the space in your HardDisk’s name by “\ “ you’ll also get an error and you should just try again)
  • on the next line, type this :

mv ./mbr_cache ./mbr_cache-old

  • then press the [Enter]-key
  • when the cursor returns on the very next line you’re good
  • again, if you get an extra line in response, you’ve made an error and trying again with greater accuracy will probably solve it…
  • then, exit Terminal.app by pressing the [cmd]+[Q] key-combo
  • then restart your Mac by clicking on the Apple-icon top left in the top menu bar and clicking “Restart” from the pull down menu
  • now your Mac should startup without problems
  • note that the first startup will take a little longer, as all system settings need to be rebuilt

That’s it !

enjoy 😉

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fixed : Logitech Craft keyboard not recognized during macOS 10.14 Mojave startup

Question :

I have bought this great Logitech Craft keyboard and it works perfectly. I love it. With it’s backlit keys, it’s programmable crown-dial, it’s USB-C charging, it’s multiple device-switching and it’s very responsive keyboard keys, it’s a joy to work with and a very interesting alternative for Apple’s own Extended Magic Keyboard at roughly the same price point if you shop around.

The only problem is : when I start up (or restart) my Mac, the keyboard isn’t recognized so I can’t type my password to unlock my Mac…

When using the Carft keyboard with my MacBook Pro that isn’t a huge problem, since I can just open the MacBook Pro and use the built-in keyboard to bypass this, but with my new Mac mini… I’m stuck…

The only option I could come up with is to keep an old USB-keyboard connected to my Mac mini and just use it for loggin in only… but that’s not a very tempting solution…

Isn’t there any alternative solution ?

 

Answer :

Yes, there is… there are actually 3 alternative solutions (option 3 is the most versatile in my opinion) :

  1. use your Apple Watch to login on macOS Mojave (of course, this won’t work if you don’t wear an Apple Watch…)
  2. use the on-screen keyboard during login (the so called Accessibility Keyboard that you can use when only your mouse or touchpad is recognized)
  3. use Logitech’s Unifying Receiver (the 2.4GHz RF-connection USB-plug that came with your Craft keyboard)

1. To enable your Apple Watch to unlock macOS Mojave, do this :

  • go to Settings.app
  • click on “Security & Privacy”
  • in the window that opens, click on the “General”-tab
  • put a check mark at  “Allow your Apple Watch to unlock your Mac”
  • then use the “<“-button to go back to the main Settings screen
  • then exit Settings.app (by clicking on the red dot top left)
  • now, you’ll only need to make sure you wear your Apple Watch and have it unlocked before you try to login on your Mac… (this seems trivial, but turns out to be complicated from time to time…)

2. To enable the on-screen keyboard during login, do this :

  • go to Settings.app
  • click on “Users & Groups”
  • in the window that opens, click on “Login Options”
  • then, click on the “Accessibility Options”-button
  • in the window that opens, put a check mark at “Accessibility Keyboard” and click the “Apply”-button
  • then use the “<“-button to go back to the main Settings screen
  • then exit Settings.app (by clicking on the red dot top left)

3. To setup the connection with your Craft keyboard using the “Unifying Adapter”, do this :

  • find the Unifying Receiver (the USB-plug) that came with your Craft keyboard… it might still be in the original box… if you can’t find it, you can get a new one here or at Logitech (Logitech charges $15 or €13 plus shipping for it)
  • plug the Unifying Receiver in one of the USB-ports on your Mac (or in a USB-port of a USB-hub that is connected to your Mac)
  • go to Settings.app
  • click on “Bluetooth”
  • in the “Devices”-list click on the Craft keyboard, the non the X-marked dot that appears on the right side of it (to un-pair the Craft keyboard from your Mac)
  • then go to https://support.logitech.com/en_us/downloads and download the latest version of the Logitech Options software
  • install the Logitech Options software on your Mac
  • then, go to Logitech Options.app and follow the directions to pair your Craft keyboard to your Unifying Receiver
  • note that in macOS 10.14 Mojave you will need to also allow Logitech Options.app in the Privacy settings, to do so do this :
    • go to Settings.app
    • click on “Security & Privacy”
    • in the window that opens, click on the “Privacy”-tab
    • then, click on “Accessibility” in the list on the left
    • then, put a check mark at “Logitech Options Deamon” on the right
    • then use the “<“-button to go back to the main Settings screen
    • then exit Settings.app (by clicking on the red dot top left)

That’s it !

enjoy 😉