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Old 11-07-2018, 10:14 PM
hand123 hand123 is offline
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Join Date: Oct 2008
Posts: 12
Originally Posted by dnanian View Post
I've covered this elsewhere, but upgrading to a new/larger drive is easy.

First, prepare the new drive by partitioning it:
  • Start Disk Utility
  • Select the external drive hardware in the sidebar
  • Click the Partition tab (if it doesn't appear, you selected the volume, not the drive hardware above it)
  • Use Disk Utility's controls to divide the drive as needed, even as a single large partition. Use "Mac OS Extended (Journaled)" as the format type and name appropriately
  • Click Options
  • Choose the proper partition scheme (GUID for Intel macs, Apple Partition Map for Power PC) and accept the page
  • Click Partition.

Then, make a full "Backup - all files" with "Smart Update" or "Erase, then copy" to the new drive.

Rename the drive to have the same name as the original.

Now, shut down and swap the drives.

Power back up -- you'll notice it'll take a while to start (it's looking for the original drive). When it finally boots, open System Preferences and select the new drive as the startup drive in the Startup Disk preference pane.

That's all there is to it! Note that some copy protected programs might notice that the new drive is different than the old one and may need to be 'reactivated'.
Hello. Is this the same process for APFS drives? I'm migrating from an old Mac Mini 2012 500GB SSD to a new Mac Mini 2018 1TB SSD. Thank you.
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