HOW TO Migrate backups to a new drive

1

FORMAT THE DRIVE Plug in the new drive and erase it in Disk Utilities, formatting it as Mac OS Extended (Journaled) GUID. Select the new drive and press Cmd-I. In Sharing & Permissions, deselect “Ignore ownership on this volume” if selected.

2

COPY BACKUPS To briefly turn off Time Machine, go to System Prefs > Time Machine and uncheck Backup Automatically. Now copy the folder “Backups.backupdb” from the old drive to the new one. Type in an admin name and password.

3

OLD AND NEW Go back to System Preferences > Time Machine. Click Select Disk, pick the new one, then tap Use Disk. You can now turn Time Machine back on, and subsequent backups will be saved with the old ones on the new disk.