Migration

wildwoodgad wrote:

I followed exactly and after 12 hours of supposedly transfer, it said it would take 1257 hours to transfer. What should I do?

try a cable connection and compare your results

The most trouble free way to move to a new machine, is using the Setup Assistant on the initial boot of a brand new machine— you have one shot here. https://support.apple.com/en-us/HT205749

The second best way is use the Migration Assistant.

How to move your content to a new Mac Move your content to a new Mac - Apple Support

wildwoodgad Said:

"Migration: I followed exactly and after 12 hours of supposedly transfer, it said it would take 1257 hours to transfer. What should I do?"

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What's the Source of the Data?:

Using iCloud?:

How exactly are you transferring the data? If grabbing it off of iCloud, it might take a while for a large size hard drive.

Do Either of the Following...

A. Use Migration Assistant:

Backup your current Mac with a Time Machine Backup, and then then use Migration Assistant to transfer it to your new Mac in a matter of minutes.

B. Grab in Clusters:

If you were to transfer data over manually, you'd grab it in clusters (gather it in to folders, and then transfer using a USB Flash Drive),

wildwoodgad Said:

"Thank you, the source was transferring from my 2020 MacBookPro to my 2021 M1 MacBookPro. Migration Assistant didn't work. Is there a way to use Thunderbolt and migration assistant? I have 500 gb, and this is a business computer. Need it to work."

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You are welcome.

Yes. Do so in Target Disk Mode --the other Mac would bee seen as a folder on your Desktop.

wildwoodgad Said:

"[...]I have 500 gb, and this is a business computer. Need it to work."

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Migrate in Compressed Batches:

Create multiple folders > Compress the folders > Transfer the files to the new computer(i.e. via a flash drive) > Decompress the files on the new computer > move them to their designated locations.

About Compressing:

As a result of compressing a folder of files, a ZIP file is made. Such files have a minimized storage-size, and therefore have a faster DTR when being uploaded or downloaded

Go Here for More: Compress or Uncompress files and folders on Mac - Apple Support