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Copying a larger HD to a smaller HD

Oldmanmac

macrumors 6502
Original poster
Mar 31, 2012
445
14
Edmond, OK
I want to copy a 2.5TB HD to a 2TB HD. The 2.5 TB is not full and should be less than 2TB.Does the 'size' being copied make any difference?
 

satcomer

macrumors 604
Feb 19, 2008
7,068
1,202
The Finger Lakes Region
The make sure you clear your Internet cache and delete old email attchments! Plus you could take out the okd hard drive and get an external caddy and put that older drive into it.
 
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redheeler

macrumors 604
Oct 17, 2014
7,663
7,513
I want to copy a 2.5TB HD to a 2TB HD. The 2.5 TB is not full and should be less than 2TB.Does the 'size' being copied make any difference?
It should work just fine, as long as the 2.5 TB is less than 2 TB full.
The make sure you clear your Internet cache and delete old email attchments! Plus you could take out the okd hard drive and get an external caddy and put that older drive into it.
I think you misunderstood the OP's question...
 
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Weaselboy

Moderator
Staff member
Jan 23, 2005
30,898
10,669
California
I want to copy a 2.5TB HD to a 2TB HD. The 2.5 TB is not full and should be less than 2TB.Does the 'size' being copied make any difference?
It will work fine depending on what you use to make the copy. Something like CCC will copy that over just fine. But if you try to copy (restore) with Disk Utility it won't work since the destination volume needs to be as large or larger than the source. You can use DU to shrink the source down below 2TB then do the copy with DU if you like.
 
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Oldmanmac

macrumors 6502
Original poster
Mar 31, 2012
445
14
Edmond, OK
I'm using CCC to copy the most up-to-date HD to the new HD, but it won't then boot(newer one).
Trimming some music files off to reduce any size problems, it starts to boot then cursor disappears.
Don't know what I'm missing....
 
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Weaselboy

Moderator
Staff member
Jan 23, 2005
30,898
10,669
California
I'm using CCC to copy the most up-to-date HD to the new HD, but it won't then boot(newer one).
Trimming some music files off to reduce any size problems, it starts to boot then cursor disappears.
Don't know what I'm missing....
CCC should do the trick. Is the new drive formatted to Mac OS Extended (Journaled) in Disk Utility?
 
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