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macrumors newbie
Original poster
Dec 31, 2019
4
0
I've read a few threads from M1 owners who bricked their machine when they did a "restore". My stupid question: Is "restore" the same as "migrating". I will need to migrate my data from my old MBP to my new M1 MBP from a Time Machine backup. Is migrating data what's been bricking the M1s??? Thanks,
 

4sallypat

macrumors 601
Sep 16, 2016
4,034
3,782
So Calif
I have the same question.
I plan on using Migration Assistant to transfer my data from my 2019 MBP into the M1 Mini today....
 

chabig

macrumors G4
Sep 6, 2002
11,450
9,321
Migrating is just moving data from the old machine to the new.

Restore is wiping the machine clean and reinstalling the OS from scratch.
 

deeddawg

macrumors G5
Jun 14, 2010
12,468
6,571
US
As above. You'll be fine if you're not trying to do a bare-metal restore.

My understanding is this has been an issue for newly released systems in the past as well, so I'm surprised it's recurring. You'd think Apple would've learned and not let it keep happening.

Nevertheless, unless you're wiping your brand new M1 system clean you have nothing to be concerned with.
 
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4sallypat

macrumors 601
Sep 16, 2016
4,034
3,782
So Calif
M1 Mini is not allowing any migration of data from my 2015 MBP.

I have a Time Machine backup on an external Thunderbolt SSD using an Apple TB3-TB2 adapter.

Fails on both the setup screen (before account creation) and after setup (using Migration Utility).

What am I doing wrong ??
IMG_6547.jpg

IMG_6546.jpg
 

MorganB

macrumors regular
Oct 24, 2008
137
62
I went through the migration process today. 2016 13" MacBook Pro to M1 MacBook Air. Here are the challenges I faced with tips to overcome them. Hopefully will be useful and save time for others.

Problem 1: During the set up process of my Air I said I wanted to migrate data from another Mac. This opened the migration assistant. MacBook Pro which I was migrating from was at 11.0.1. The migration assistant on the M1 Air began update to 11.0.1 on the Air. The update ALWAYS failed. I tried two wifi networks and of course restarted the air etc. Tried maybe 5 times.

Solution: During the set up process of my MacBook Air I said I was not transferring data from another Mac. I just went through and set it up as new. Once I had my profile set up I went into software updates without and updated to 11.0.1 without issue and then returned to the Migration Assistant for a new problem.

Problem 2: After opening migration assistant and connecting both Macs together via USB-C, I opened the migration assistant on my old MacBook Pro and began the migration process. The Macs would only connect via wifi peer-to-peer. I then realized after research that I needed a thunderbolt cable to connect the two Macs so this problem was my fault.

Solution: Purchase an Apple Thunderbolt cable.

Problem 3: Both Macs connected with the correct Thunderbolt cable which should allow for data transfer via the cable (much faster than wifi). I opened both migration assistants but they were still ONLY connecting via WiFi. No option available to connect via thunderbolt.

Solution: Call Apple support who was equally surprised at the situation and after some research on their part they said I would need to put the MacBook Pro in target disk mode. Open system preferences and select start up disk then restart in target disk mode on MacBook Pro. Then with both computers connected with thunderbolt cable open migration assistant on MacBook Air and begin transfer.
 

4sallypat

macrumors 601
Sep 16, 2016
4,034
3,782
So Calif
.....
Solution: Call Apple support who was equally surprised at the situation and after some research on their part they said I would need to put the MacBook Pro in target disk mode. Open system preferences and select start up disk then restart in target disk mode on MacBook Pro. Then with both computers connected with thunderbolt cable open migration assistant on MacBook Air and begin transfer.
Yes, this was the case with me as well - very irritating that the initial M1 setup screen says it can take a Time Machine or another Mac to transfer - wirelessly or wired network = no go.

Finally had to connect via TB cable and TB3-TB2 adapter in target disk mode order to migrate the data over.
 

s66

Suspended
Dec 12, 2016
472
661
Old machine in target disk mode + Thunderbolt cable and off you go. Standard mac solution for many years already.
 
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s66

Suspended
Dec 12, 2016
472
661
I've read a few threads from M1 owners who bricked their machine when they did a "restore". My stupid question: Is "restore" the same as "migrating". I will need to migrate my data from my old MBP to my new M1 MBP from a Time Machine backup. Is migrating data what's been bricking the M1s??? Thanks,
The "restore" that's been talked about in those threads is wiping the machine clean and reinstalling from scratch the OS to have a clean copy (the install on a new mac is pretty much as clean as it gets (it has a copy of a handful of apps on it that you remove this way).
This is completely different from what you're trying.

After unwrapping the machine it starts a special setup program when it boots for the first time to ask you a few things and set up the machine for you. One of those steps is to migrate applications and data from an older mac. That's option 1.

Option 2: you can still run that migration assistant afterwards yourself (Migration Assistant.app)

Option 3: A Time Machine backup on an external disk is pretty easy to access on another mac and just pick up the data you need just as well.

If it were me: I'd go for option 3. Too good an opportunity to get rid of all superfluous software accumulated over the years on your old machine and get is all clean.
What I do is copy the old home directory off of the old machine onto the desktop or so and copy out of there what I need as I need it - after a while you'll notice you have what you need and can wipe it.
 
Last edited:

UltimateSyn

macrumors 601
Mar 3, 2008
4,969
9,205
Massachusetts
I am transferring several hundred GB of files from a Time Machine backup on a new M1 MBP. This process has been stuck on “Starting Up” for about 9 hours now, with no indication of progress or a time when it will be done. Is this normal? Should I kill it, or is it expected to complete?
 

JD2015

macrumors 6502a
Sep 16, 2014
849
526
I am transferring several hundred GB of files from a Time Machine backup on a new M1 MBP. This process has been stuck on “Starting Up” for about 9 hours now, with no indication of progress or a time when it will be done. Is this normal? Should I kill it, or is it expected to complete?
Sorry if you have already done this. I read somewhere that a thunderbolt cable is required if that is of any help. It should go in the top USB 4/Thunderbolt port. The lower port should be used to charge the macbook at same time.
 

UltimateSyn

macrumors 601
Mar 3, 2008
4,969
9,205
Massachusetts
Sorry if you have already done this. I read somewhere that a thunderbolt cable is required if that is of any help. It should go in the top USB 4/Thunderbolt port. The lower port should be used to charge the macbook at same time.
I’m worried about quitting this procedure while it’s still in progress... is there a best / safe way to do that?
 

Dave_O

macrumors regular
Nov 16, 2018
120
52
I migrated from a 2018 Mac Mini running Big Sur to the M1. I used Carbon Copy Cloner to create a Data volume clone on a usb disk. Migration assistant moved my data, all preferences, and my programs when I first booted the M1.
pretty good experience, with the expected tweaking after
 

Mark DB

macrumors newbie
Nov 21, 2020
1
0
Wow. Also having migration issues. This is an interesting kind of infuriating. Worse than windows. After using Apple computers for nearly 40 years, having been taught to use Macintosh computers in elementary school, I’ve met my match. Nothing has been this confusing yet.

My ongoing issues:
Initially tried migration over WiFi. I set it up and everything went fine. I have a decent WiFi 6 router so the 3hr 22 minutes seemed about right for 200Gb. Went out, came back a few hours later and it read 3 hr 21 min. A couple hours later it failed with some odd error. Tried again and it failed. Cracked open the time capsule and put the hd in a Usb enclosure and it wouldn’t recognize it. Hooked my late 2018 air over tb in target disc mode and the M1, which has the same storage space, reported not enough space for the transfer. Rebooting the m1 I found the storage was somehow shrinking rapidly, so I disconnected the 2018 air and the storage was still shrinking. Again I had torn apart my time capsule so it wasn’t transferring from that. Decided something was corrupted and wiped the M1. Tried to transfer again in recovery mode (after finding out how to do this... it has changed) and it asked to unlock my source directories. Entering my password does nothing... no error and no success. I decided that I had to reinstall Big Sur and, as everyone but me knows apparently, it fails to complete. Failed to personalize OS X or something. What fun. Should have just used CCC.
 

jsoto

macrumors regular
Jul 27, 2010
138
9
Chicago
I am getting ready to purchase an M1 MBA. I have a VERY OLD Mid 2010 MBP i7 dual core 2.66 GHz that is running OS X High Sierra all updates installed, no other OS Higher officially supported. The only thing I care about on this old machine is iTunes or now called the Music app and iBooks. I do have Time Machine backups thru a FireWire 800 external drive and the same drive also has USB 2.0. This MBP doesn’t have USB 3.0. What would be the best to migrate this off to an M1 MBA? Thru the external Time Machine backup drive or do Target Disk mode to the old MBP? If target disk mode is recommended, how would the connection be? Is it thru USB, FireWire 800, or thru a crossover ethernet cable? This would be my first migration on a Mac. So any tips would be greatly appreciated.
 
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peterak

macrumors newbie
May 16, 2007
1
0
Old machine in target disk mode + Thunderbolt cable and off you go. Standard mac solution for many years already.
So if I want to migrate from my 2015 MBP to an M1 MBA I need to buy Apple's Thunderbolt 2 (female) to Thunderbolt 3 (male) adapter and a Thunderbolt 2 cable? WTF?
 

clarencek

macrumors 6502
Apr 8, 2008
295
348
Target disk mode failed for me. Migration assistant with two macs next to each other on WiFi failed, connected via usb c also failed.
What worked was backing up my old Mac via time machine to a ssd.
Then restore the backup via ssd on setup.
Restore took 45 min for 800GB and went smoothly.
 

4k78

macrumors regular
Sep 14, 2016
209
204
What about Ethernet? I bought a USB-C to Ethernet adapter to connect to my late 2025 5K iMac. Won’t that work?

Should add that I haven’t received my MBP yet.
 

pop2video

macrumors member
Mar 31, 2016
67
79
I’m getting my m1 MBA soon. Has anyone successfully transfer from a USB 3.0 external drive with dongle? I hope it works when I got the mac...
 

Invisible Elf

macrumors regular
Jan 16, 2011
133
110
I've had no problems migrating from MBP to MBP earlier using disk migration over wifi. When migrating from my old MBP to new MBA it just wouldn't start however. Tried using target disk mode, but turned out the usb-c cable that came with my iPad pro is not the kind that works.

I ended up backing up using time machine to an external SSD and then importing this backup to the new MBA with migration assistant. If you have an external SSD available I highly recommend this approach.
 

deeddawg

macrumors G5
Jun 14, 2010
12,468
6,571
US
I've had no problems migrating from MBP to MBP earlier using disk migration over wifi. When migrating from my old MBP to new MBA it just wouldn't start however. Tried using target disk mode, but turned out the usb-c cable that came with my iPad pro is not the kind that works.

I ended up backing up using time machine to an external SSD and then importing this backup to the new MBA with migration assistant. If you have an external SSD available I highly recommend this approach.
The USBC charging cables shipping with Apple equipment often is USB2 for data at best.

This is one of the annoying things with USBC -- different cables have different capabilities, and the labelling of such is inconsistent at best.

I’m getting my m1 MBA soon. Has anyone successfully transfer from a USB 3.0 external drive with dongle? I hope it works when I got the mac...
Define dongle?

I copied my data onto my M1 MBP from an external USBC SSD Carbon Copy Cloner backup. Easy peasy. (I set up the MBP "as new" and didn't use Migration Assistant)
 

pop2video

macrumors member
Mar 31, 2016
67
79
The USBC charging cables shipping with Apple equipment often is USB2 for data at best.

This is one of the annoying things with USBC -- different cables have different capabilities, and the labelling of such is inconsistent at best.


Define dongle?

I copied my data onto my M1 MBP from an external USBC SSD Carbon Copy Cloner backup. Easy peasy. (I set up the MBP "as new" and didn't use Migration Assistant)
all in one adapter dongle with USB A for the external drive so I can restore time machine into the new m1 mac
 

ECJ

macrumors 6502a
Jul 5, 2006
565
197
Memphis, TN
I just did the migration from a M1 MBP to a M1 Mac Mini, and used the included charging cable and it defaulted to Wi-Fi, with a quoted 6 hours to complete. I switched to a Thunderbolt cable, and it took 15 minutes for 550GB.
 
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