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Error code -8062 while copying large file in OS X 10.8.4

I have to copy a very large Time Machine backup file to another disk before resetting RAID 1 on my LaCie 4 GB 2Big drive. File is about 350 GB. After getting through about 2/3rd of it, I am getting an error saying " .. you don't have permissions to copy some items..." and when I click OK, then I get an error code - 8062.


I am using MBA Mid July 2011, OS X 10.8.4, Time Machine backup on LaCie 4 GB 2Big RAID 1 drive to FreeAgen 1 TB.


I would appreciate any thoughts on this. It has happened twice now and since the process takes a very long time, I have wasted three days on it now.


Thanks you.

MacBook Air, OS X Mountain Lion, MBA 13" July 2011, OS X 10.8

Posted on Aug 7, 2013 6:35 AM

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13 replies

Mar 16, 2015 2:26 PM in response to Eric Root

This just helped me immensely. I made a copy of a Time Machine backup to one of my Lacie externals from the Lacie external it was on using the MacBook Pro 10.10.2 which created the backup. No problem; just had to sign my password. But, when I tried to copy it ~again~ from the Lacie external which had the copy to another Lacie external from an iMac 10.9.5 I got the error -8062 message. Choosing the "apply to enclosed items" command to the backups.backupdb folder worked.


Two days of struggling ended !

Aug 7, 2013 9:36 AM in response to Z_B-B

Dear Z_B-B,


This is the only fle, a Time Machine Backup of my MBA, that I have tried to copy from LaCie 4 GB 2Big drive to the FreeAgen 1 TB drive. I don't have any other files that are even a GB size. I also only need/neede to do this so that I can have a backup copy of what is on the "good" darive of my LaCie 4 TB 2Big. The LaCie was set up in a RAID 1 configuration and one of the drives in the Mirror state failed. I want to save a copy of what is on the "good" drive so that I can reconfigure RAID 1 (MIRRORED) on the LaCie with a new drive without fear of losing the existing data.


I have copied my iPhoto Library, about 49 GB in size, from my MBA HD to the FreeAgent drive successfully.


FYI, I am using MBA that I have admin rights to, the data on LaCie is Time Machine backup from my MBA so it is a puzzle why there would be any permission issues at all.

Aug 7, 2013 10:16 AM in response to Z_B-B

Thanks for your attentio Z_B-B.

This file is the sparsebundle created by Time Machine. Within it there are subfolders and further sub-sub folders. Not being familiar with the architecture of these files, I am uncomfortable about taking these apart and copying sub-sub folders only. I have had trouble with Time Machine before where for one reason or another it refuses to recognize older backups.

Files size is basically many months of Time Machine Backups that occur incrementally every hour. My MBA has a large SSD.

Issue with permissions still does not make sense.

Thanks again.

Aug 7, 2013 10:38 AM in response to rdfNaresh

Although the documentation says you can copy Time Machine backups in the Finder, it's very slow and sometimes doesn't work at all.

Launch Disk Utility, open the built-in help, and search for the term "Duplicate." Follow the instructions. All existing data on the destination volume will be erased. That shouldn't be a problem, because you don't want to mix backup and non-backup data on the same drive anyway. Turn Time Machine OFF in its preference pane while copying the volume.

Aug 8, 2013 6:02 AM in response to Eric Root

Thanks for your suggestion Eric Root.


This seems quite likely a way to go. However, I am intrigued by Linc Davis' message herein that the Disk Utility Duplicate method may be faster.


If Duplicate would work with Source Disk and Destination Disk of differing sizes, particularly with Desatination Disk smaller in size than the Source disk then a faster time would be a real benefit.


I would appreciate any and all thoughts about this.

Aug 8, 2013 8:18 AM in response to rdfNaresh

If the destination volume is smaller than the source volume, a file copy will be performed, rather than a block copy. It probably won't work any better than copying in the Finder, but you can try it.


In general, though, you shouldn't need to copy backup data at all. If you want to retire a backup device, put it aside until you're sure you'll no longer need the data on it, then erase it.

Nov 13, 2014 9:03 PM in response to rdfNaresh

This sounds incredibly simple, but what method did you try to transfer the large file? I had same error code -8062 when trying to copy the large file from the source drive into the receiving drive. However, this issue was resolved when I placed the file into the source hard drive's "shared" folder and then copied from the receiving computer and onto it's drive. Worked seamlessly.

Error code -8062 while copying large file in OS X 10.8.4

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