fixed : MacBook Pro sighs then hangs during startup without progress bar over and over again

Question :

I have a  2018 MacBook Pro 13″ with TouchBar and 4 Thunderbolt3 ports that seems to hang during startup : the MacBook ‘sighs’ (fan noise) during startup and shows only a black screen with a white Apple-logo, but no progress bar as usual… then it automatically restarts… and the same thing repeats itself…

Is there any way to solve this ?

 

Answer :

This might be caused by a hardware problem, so if it happens frequently, you should take your MacBook Pro to an AppleStore or authorized Apple Repair shop for repair.

But before you do so, try this, as it might fix your problem :

If you do see a progress bar during startup, look at this post :

fixed : MacBook Pro hangs during final stage of macOS startup

If you do not see a progress bar during startup, do this :

  • unplug everything else from the USB-C ports
  • now plug in the USB-C power-adapter
  • then, if you can, plug-in a USB-C-to-Ethernet-adapter and make an ethernet-connection to your network (and the Internet), if not leave it
  • then, press the ON/OFF-fingerscan-button (top-right in the Touch Bar) to restart your Mac
  • then, during restart, immediately press the [CMD]+[ALT]+[R] key-combo on your keyboard
  • keep this key-combo pressed for about 30 seconds, then release
  • now, leave your MacBook connected to power and internet overnight
  • in the morning, your MacBook will have reinstalled the latest version of macOS

…and you will be good to go 😉

If the problem persists overnight, you might want to try this also, before you decide to bring in your MacBook Pro for repair :

  • create a macOS installer on a USB-stick (or even a USB-C stick)
    • as your own MacBook Pro is not available for this, you need to do this on another Mac or ask someone to do this for you
    • instructions on doing this can be found here on Apple.com
  • then plug the USB-C stick (or USB-stick with a USB-to-USB-C-adapter) into your MacBook Pro
  • then restart your MacBook Pro, while pressing the [ALT]-key on your keyboard
  • release the [ALT]-key when the Startup Manager window opens
  • then select the USB-stick as your startup disk
  • then follow the onscreen instructions for (re)installing macOS

That’s it !

As mentioned before : if you keep running into this problem frequently, you might have a hardware problem and you should bring your MacBook Pro in for repair.

enjoy 😉

fixed : FREE application for cloning a Mac HD

Question :

I need to make an exact (bootable) copy of my secondary Mac’s startup-HD. Someone suggested me to use an application called Carbon Copy Cloner, but since I am running OSX 10.8 Mountain Lion on my primary Mac, I would need to use Carbon Copy Cloner version 3.5 or newer, but that’s not free software any longer…

As I only need to do this once, I’m not willing to pay more than €5 to be able to do so. What’s the best alternative ?

Answer :

The best alternative for making a bootable clone version of a Mac startup-HD is what you already have : Disk Utility …and best of all : it’s completely FREE.

Here’s how to do so :

– connect both HDs to your Mac (using USB or FireWire for example)

– on your Mac, open the Disk Utilities application (which can be found inside the folder called Utilities which is in the Applications folder)

– you will now see both HDs appear on the left side of the Disk Utility window (they will be listed as the disk size followed by the manufacturer name and some additional info, directly below them the name of the partitions on it are listed – on Macs there’s normally only one partition per HD)

– on the rest of the page (middle & right), you will see 5 chapter buttons : “First Aid”, “Erase”, “Partition”, “RAID” and “Restore”

– click on the “Restore”-chapter button

– now put the cursor in the white area behind “Source:” and then click on the partition you want to copy in the menu on the left

– then put the cursor in the white area behind “Destination:” and in the menu on the left, click on the HD (or on the partition) you want to copy to (or drag & drop it from there onto the

– if for some reason your chosen Source or Destination now lists something else than what you would like, just try again

– then click on the “Restore” button that’s bottom right

– …now all you have to do is wait (using USB 2.0, about 10GB of used disk space will be cloned in about 10 minutes)

– when the cloning is finished, both HD’s will have the same name, and therefore might not properly mount at the same time, so only one will be visible on your Desktop

– use the ‘drag disk to Trash’ procedure (or the eject-icon next to the HD’s listing), and unmount both HDs

– then plug just one HD back in to make it visible on your Desktop, and check if the cloning went okay (by browsing though it in the Finder)

– then eject the first HD, and check the second HD the same way

– that’s it !

Donate Button (MacManusNL)

Note :

You can quickly check if the HD you’ve cloned is bootable, by connecting it to your Mac using a USB cable and then restarting your Mac with the ALT-key pressed

…that will enable you to choose any connected HD as the startup drive

if the cloned HD turns out not to be bootable, plug it into your Mac again, and use Disk Utility to check if the Partition Map Scheme is ‘GUID’ (it should not be ‘Apple’ !), if it’s not, re-partition the HD and do the cloning process again