MacBook Pro :: Copying Large Files From Old To New One?
Jun 19, 2012
I am having another problem transferring some larger folders from my old MacBook to my new MacBook. I am trying to move some very large folders and individual files from my old Mac to my new Mac, both running the latest Lion. I have tried this with both USB Flash drives and with external hard drives. Whenever I drag and drop from Finder to either the flash drive or the hard drive, the copying begins, but always gets stuck with the pinwheel at almost exactly 4.17GB. At first I thought that the formatting of the flash drive might be the culprit, but it also happens on the external hard drive that is formatted for Apple Extended.
A very "time and effort" intensive workaround is possible if I just copy fewer than 4 GB at a time, which is what I have been resorting to. But this won't allow me to transfer my Windows 7 Parallel virtual machine, since that one file is over 90GB. As additional information, it appears that Time Machine isn't bothered by this limitation, since I can backup and restore these huge files from a backup. Unfortunately, Migration Assistant doesnt seem to permit the granularity of restoring just one file. why the system hangs at 4.17GB of transfer? By the way, this happened with Snow Lion too. It didn't just start with Lion.
Info:
MacBook
Pro, Mac OS X (10.7.2), 15" MBPB, 8G RAM 750GB, 500GB
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Jun 18, 2008
I think I have found a bug in Finder where I cannot copy large files from a bus powered USB external. I get this error:
"The Finder cannot complete the operation because some data in "..." could not be read or written (Error code -36)"
I think I have eliminated hardware as an issue:
1. The problem is repeatable (and always happens) on my Intel Macbook Pro, Intel Mac Mini and G4 Mac Mini
2. The problem happens whether I have formatted the external as HFS+ or NTFS (I can't use FAT32 for files over 4GB, e.g. VMWare disk images)
3. I can copy the files off the external with my Windows Vista machine (mostly dormant these days) and an XP laptop (I use for work), using Explorer.
4. The same problem happens with two different external enclosures (An Xtatix Portadrive and a Beyond Micro mobile Disk). I have also tried 3 different 2.5" drives in these enclosures.
5. If I boot my Macbook Pro into Vista using Bootcamp, I CAN successfully copy the files using Explorer.
6. I CAN also copy the files OK if I use Terminal and the 'cp' command (it works for all 3 machines)
7. I have NO problems with large files and Finder if I use a powered external with 3.5" drives via USB or Firewire (HFS+ or NTFS) on any of the Macs.
As you see, I think I've been pretty thorough. It seems as though Finder must be at fault when used with a bus powered USB external.
I should also mention that all 3 of my Macs are on Leopard 10.5.3, though I did also boot a my Intel Mac Mini into Tiger with the same result (Finder failed, 'cp' worked).
I have reported the problem to Apple, but wondered if anyone else has had a similar issue...and hey, a solution would be a great bonus!
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Jul 2, 2009
I recently picked up a USB Hard Disk, I plan on copying large files to it (for example 20gb VMs), I am wondering whether or not finder can copy files as large as 20gb one at a time because the last time I tried to do this on a USB Stick, the file transfer would either freeze or would end up taking way too long to transfer and in the end I had to pull it out and having to reformat it. DOes anyone here know if such things will happen again copying these files?
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Nov 22, 2009
I've recently purchased a NAS drive and would now like to copy about 500 GB of files onto it. Obviously this is a slow process! Is there a way I can set up the copy so that if it gets interrupted I can resume the transfer? At the moment the I just know X of 100 GB has been transferred. On the destination drive you can't see any of the files being transferred across until the entire operation is complete (on a pc you can normally see the files that have been transferred immediately) ... I'm a bit worried that if I turn my laptop off or I have any network issues the transfer will fail..
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Oct 29, 2009
I have 1.9TB on one drive, 645GB on another; I want to copy all that data onto a separate 6TB drive....
What's the fastest way to do this? I have already begun w/ 2 cp -pR commands, running in different Terminal windows, but seem to be getting lower disk activity numbers in Activity Monitor than I was with a brief test of a Finder copy... is that possible?
Any suggestions? Also looking for a (relatively) efficient way to verify the copied data after the fact.
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Apr 22, 2009
I was just wandering if there is any software that people use for copying large amounts of data, or whether you just drag and drop/copy and paste with Finder?
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Jun 9, 2009
every time i try to copy a file that is over 6gb to my external drive i get this message "sorry, the operation could not be completed because an unexpected error occurred. (error code 0) how di i fix this error?
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May 18, 2010
I'm wondering if someone with the latest Time Capsule (announced last week) can post the results of copying a large file (such as your iPhoto library or equivalent - ideally over 500MB) from the HD on your Mac to the HD on the TC over GigE.
Please report the time in seconds for the copy to complete and the size of the file. I'd like to understand if they changed the QoS on transfers to the TC HD.
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Nov 2, 2010
I recently discovered, after running Disk Inventory X, some really fat files in my Library. I haven't touched them, as I read on another forum that it could be dangerous but is there anything I can do to get rid of them? I thought maybe they were left there after a recent Time Machine backup because I read that happening to someone else in another forum...
I've attached screenshots (I think) of the two biggest files.
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Jun 9, 2008
So i copied all my itunes music and photos to my iPhone. Can I hook it to my MBA which is coming soon and transfer everything over. including purchased music?
reason being is I sold my MB and I don't have an external drive.
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Oct 13, 2009
When I copy and paste a directory in my macbook pro to my timecapsule it keeps overwriting all files and deletes files that are not being overwritten. When it asks me whether i want to overwrite files it does not copy anything when i answer no. How do I copy just newer files and not delete files that are already on my timecapsule but are not on my mac. A PC does not have this problem
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Jul 16, 2010
While coping a lot of files from the NTFS drive(to a MBP13" '09) it caused my computer to freeze up, and I had to force a shut down via the power button . Anyone else have problems like this copying a large quantity of files?
Is there a GB limit you can copy at one time, or maximum number of files? FYI, my MBP locked up while it was "preparing to copy." It was stuck on just over the 40,000th file (was the large number of files the problem?).
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Apr 13, 2012
How do I copy my music files from my PC to my new Mac without using the Migration feature that crashes.
Info:
MacBook Pro (13-inch Late 2011)
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Aug 5, 2010
My MacBook Pro orginally came with Leopard, however I deleted all partitions (by accident) and created 2 Windows partitions. Recently however I have done something that does not allow me to get into either of them which is an issue because I am unable to back up any of the files prior to installing snow leopard.
Using the snow leopard installation, I can see one of the windows partitions (despite not being able to boot from it) by loading Disk Utility however I am still unable copy the files from my Windows partition and back up onto my USB external hard drive.
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May 4, 2012
How do i move file between folders instead of copying?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jun 22, 2014
I have two WD Elements external HDs. I use a Belkin powered 2-port USB hub to connect them to my Airport Extreme (used as a server). I started out with one of them, a 1.5 TB, and purchased the second one when the first started to get really full. I use them exclusively for storing music files. My plan was to move files from the nearly full drive to the new one. I began moving files, folder by folder (a painstaking and time-consuming process) from the one drive to the other.
The first problem that popped up was this: in the process of copying a folder to the new drive, an error message appeared saying that the "operation could not be completed because you do not have access to some of the items." I in fact have full custom access to both drives, and am the only one who uses them. Another message I would sometimes get would be, "[file name] could not be moved because its name contains too many characters."
I found this annoying but bearable until it started happening more frequently. What's more, when a folder failed to copy completely, that would leave me with an identically named but incomplete folder in the second location. An attempt to delete it would be met by another error message, "[folder name] could not be deleted because [folder or file name] is in use.
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Dec 25, 2010
This only happens when she copies files between internal hard drives. After copying the files, she verifies that files exist in both locations. She then deletes the files in the old location. Then, newly copied files are missing from the new location.
I've never heard of this happening before, except for with improperly unmounted external drives. I have run disk utility and verified that there are no problems with either drive.
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Nov 29, 2009
Why does my mac stop downloading files, copying to clipboard, saving files to desktop, etc?
iMac g5 1.9 ghz 17" running 10.5.8. Had a hard drive crash and bought a new one. Loaded new OS leapord. Everything works fine at first, but after the computer has been on for a while, it will stop downlading files, disk verify doesn't work. I can't copy and paste stuff. It seems as if the hard drive is full, but I have only used 32GB of 300GB.
When I restart, it works again, then slowly not. Is it an overheating issue? How do I know if my fan is running? Is it a bad hard drive I put in it? Bought it new with three year waranty.
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Jul 2, 2009
On several separate occasions, one of our users has had trouble with files "disappearing."
This only happens when she copies files between internal hard drives. After copying the files, she verifies that files exist in both locations. She then deletes the files in the old location. Then, newly copied files are missing from the new location.
I've never heard of this happening before, except for with improperly unmounted external drives. I have run disk utility and verified that there are no problems with either drive.
Could anyone help explain why this is happening or how to prevent it?
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Mar 27, 2012
I have a 250GB WD external hard drive. I formated it in MS-DOD(FAT)/ExFAT using disk utilities.I have problem copying files from MacBookPro to an external hard drive. when i try to copy it says "The Finder can’t complete the operation because some data can’t be read or written (Error code -36) " The info of the files is shown as read & write?
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.6.8)
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Jun 22, 2014
I have some files in my download folder, in my macbook's hard drive, but the problems comes when I am trying to move files to my folder called ''Documents'' and the system's requesting my personal password. And after it's copying that.... That's a huge problem because they are really heavy documents.
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Apr 2, 2008
I've had my Air for a couple of months now and very happy with it. However I've noticed if I copy a large about of data to it, lets say around 2gb from a USB or network drive it grinds to a halt. It would start off saying 10 minutes to copy, then get to about 800mb and slow down to about 24 hours to copy.
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Jun 22, 2012
When I try to archive my files with Time Machine I get an error message "error disk not available".The external disk is a 1 TB Iomega EGO Portable Hard Drive Mac Edition connected with 2 USB connection to my Mac Book Air with MacOS 10.7.4.I have format the disk in MacOS extended. I have tried to copy file from my internal disk to the external disk & it works correctly.
Info:
MacBook Air, Mac OS X (10.7.3)
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Sep 10, 2010
Got a slight problem transferring files from my Macbook Pro to my portable hard drive. My portable hard drive is partitioned into NTFS and FAT 32. The files are over 4gb big so ultimately I cant copy it to the FAT 32 partion and NTFS doesnt seem to work with mac books
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Nov 8, 2009
I am trying to transfer a large file (~7GB) from my macbook pro to my external drive... but seems that I keep getting an error. If I try to drag and drop from my Mac drive to the folder of my external hard drive I keep getting this message: 'The operation can?t be completed because an unexpected error occurred (error code 0).' I tried to use a UNIX command with the Terminal $mv file.xxx /Volumes/HardDrive/ at first it seemed to work, but after a while I receive this message from the Terminal: 'File too large' I am now frustrated... I need to save this large file for backup purposes and my external hard drive is not big enough to be used for Time Machine (it has 80GB out of 160 of space left)
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Feb 16, 2010
Whenever I use nzbdrop to download large files, my late 2008 MBP fans go nuts (4500rpm or more). As soon as the donwload is finished, they ramp down again. I find this very strange, it's not that downloading is that taxing on the cpu is it (temp is around 80?C).
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Jun 4, 2014
How do I copy files fromone external hard drive to another external hard drive via mac book air
Info:
MacBook Air (13-inch Mid 2013), OS X Mavericks (10.9.3)
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Jun 20, 2014
My Macbook pro wouldn't turn on. I booted to the installation DVD and installed OS X to the external drive. Once the installation was done, I was able to access my laptop without any problem and I retrieved all my files from the USERS Folder. I tried to copy my old files to the external disk, before formatting the system’s internal drive and reinstalling OS X.
However, at every attempt, I’d get “some data can’t bet read or written (Error Code -36)”. I ran a Verify/Repair Disk Permissions and this is what I got:
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Sep 5, 2010
I get the above error when I try to copy my music folder (not the iTunes folder) to another hard drive. Both drives are formated Mac OS Extended (Journaled). Its about 130gb of data.
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Sep 17, 2010
... copy files from an external HDD ( journaled case-sensitive) to a different HDD (journaled)?
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