- START MACBOOK IN TARGET DISK MODE UPDATE
- START MACBOOK IN TARGET DISK MODE FULL
- START MACBOOK IN TARGET DISK MODE MAC
To exit target disk mode, first eject the diskfrom the other Mac.
START MACBOOK IN TARGET DISK MODE MAC
If your computers are connected to each other correctly, the Mac in target disk mode should now be available as a disk on the other Mac. Use it as you would any other disk. When your Mac enters target disk mode, it displays a large Thunderbolt , USB , or FireWire symbol onscreen. Click Target Disk Mode, then click Restart when you're asked to confirm. If the Mac is already turned on, choose Apple menu > System Preferences, then click Startup Disk. Turn on the Mac and immediately press and hold the T key while it starts up. Take either of these steps on the Mac that you want to use as the external hard disk: To connect a USB-C port to a USB-A port, use a USB-A to USB-C cable that supports USB 3.0 or USB 3.1, such as the Mophie USB-A Cable with USB-C Connector. To connect a Thunderbolt 3 (USB-C) port to a Thunderbolt 2 port, use the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter combined with a Thunderbolt 2 cable. To connect a USB-C port to either another USB-C port or a Thunderbolt 3 (USB-C) port, use the Apple Thunderbolt 3 (USB-C) Cable. To connect a Thunderbolt 3 (USB-C) port to either another Thunderbolt 3 (USB-C) port or a USB-C port, use the Apple Thunderbolt 3 (USB-C) Cable. If one or both computers has a Thunderbolt 3 (USB-C) or USB-C port, you can connect them as follows: Target disk mode doesn't support connections that use an Apple USB-C Charge Cable, USB-A to USB-A cable, or Mini DisplayPort cable. Target disk mode works when your computers are connected to each other using any of these ports: Identify the ports on both Mac computers so that you can choose the correct cable. Connect your computers with the correct cable
Use target disk mode to make a Mac appear as an external hard disk on another Mac, allowing you to quickly browse and copy files. If anyone is in the same position and down to their last resort, let me know, and I'd be happy to walk through the steps I took in more detail.Use target disk mode to move files to another computer
But I was down to my last resort and ready to erase the disk, so it was worth a try for me. You need to be comfortable trying things in Terminal which can be a bit offputting to folks. So.if Apple Support is telling you to erase the disk, and you don't have a backup of everything.all is not lost. And read multiple forums out there before trying anything. I say "basic" because it was all brand new to me but I made sure not to do anything too risky.
START MACBOOK IN TARGET DISK MODE UPDATE
It went back through the same cycle - starting at 29 minutes left, but instead of getting stuck, the update completed and I'm back in business without losing any data. I was able to use some "basic" text commands to locate a couple of large unnecessary files in my Downloads folder, delete them, and then restarted the Mac again. After checking available storage in Disk Utility, it was clear that lack of space was likely the issue (only 15MB free). There is! I restarted the Mac and got it into Recovery Mode. I took to the web to see if there were any last options to avoid erasing the disk and losing all my data. So I didn't have enough time via the other Mac I hooked up to get into the files and delete anything to try the update again. I tried Target Disk Mode, which worked for about 15 seconds before cycling back into the same routine starting over at 29 minutes again, and ultimately failing each time. I didn't have a Time Machine backup and though I had my most important files backed up elsewhere, I wanted to avoid wiping the disk. Why it doesn't make sure there's enough space before starting, I don't know, but that's what it came down to.Īpple Support's only options were to try Target Disk Mode or erase the disk and start over. After 2 days of researching and a couple of hours with Apple Support on Chat and Phone, came to the conclusion that there wasn't enough space on the drive to complete the update so it was just stuck in this cycle. I was stuck in a cycle starting at 29 minutes where it would get as close as 5/6 minutes left before erroring out and giving me the same options: greyed out "restart/reinstall" option and then the option to go into Target Disk Mode.
START MACBOOK IN TARGET DISK MODE FULL
Full story below, but in short, Apple Support was no help to me and using a combination of booting into Recovery Mode and commands via Terminal was the solution to making space for the update to complete successfully.
I was having a similar issue to others in this thread but I didn't get lucky like the OP.
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