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Helpful answers
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Aug 23, 2015 12:35 PM in response to Mr_Rodacreby Sneffels,Same problems copying mp4 files here. C'mon Apple, fix the **** problem! My ridiculous solution (which by the way works 100% of the time) is to use my Windows 7 PC, which has ethernet (home network) access to both the hard drive on my MacBook Pro and my NAS network drive, to copy the video mp4 files from one device to the other. Seriously, this is a problem that APPLE should fix immediately.
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Aug 24, 2015 1:36 PM in response to james_wrightby manonandsimon,Have found an easy way to move files from computer to external drive: using ForkLift, FTP app, to move files. No problems whatsoever with "items in use" issue.
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Sep 18, 2015 7:21 AM in response to themarcolvby DoeJM,So far the forced stop on DiskUnmountWatcher has worked for the first files!
But I never realized it was something within Apple. I have formatted my harddisc and everything.
Please Apple fix this so we do not have to work around it anymore! Cause this is annoying to say the least!
The solution of Johnny with the temp folder is unclear to me. Can you Elaborate on it please? as the previous solution is not working anymore.
There is a workaround that does actually work, albeit it it is painful...
I have no idea why Apple hasn't fixed this.
I use SAMBA shares from a QNAP and if you try and copy multiple files to the QNAP then it fails pretty much every time.
the workaround is to create a folder in the location where all your local files are.
Then, move all the files into the folder.
Lastly, drag the folder itself over on to the share where you want to copy it.
Obviously when its gone across you can move the files out of the temp folder you created.
Not ideal but it works every time for me.
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Sep 18, 2015 7:34 AM in response to DoeJMby TruthSkunk,This is interesting. I don't have a "DiskUnmountWatcher" process running (OS X 10.10.3 / "Yosemite")
DoeJM, what version OS X are you running?
Thanks
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Sep 18, 2015 7:43 AM in response to TruthSkunkby DoeJM,I am running Yosemite 10.10.5 at the moment.
Plus downloading Forklift FTP as we speak, see if that helps.
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Oct 1, 2015 8:33 AM in response to FrenchToastby RoMav9394,This seems to be working for transfer from one external hard drive to another. I did have to change the sync settings to "update" after the first attempt failed when I simply unchecked the the files going the opposite direction. Thanks!
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Oct 7, 2015 4:47 AM in response to RoMav9394by haroldfromsa,Hi Guys, try turning off the icon previews in the original location and the destination disk, I have had some success with this, in the case of mp4s finder is creating preview I think it maybe finder it self that is using the file (1st Frame) causing this issue, it should be noted this is just a theory at this point but it is an easy try and if all give it a shot and prove it, apple may be able to track a fix, this has been in the last few OS releases.
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Oct 7, 2015 7:14 PM in response to haroldfromsaby TruthSkunk,In my case, "Show icon preview" was already turned off in Finder. I also turned off "Show icons" but that didn't help either.
The only reliable way I've found to copy large files and/or many files FROM a local disk TO a mounted network share is to use the "cp" command in the terminal.
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Oct 7, 2015 8:44 PM in response to TruthSkunkby haroldfromsa,Hi Truthskunk
I guess that is the end of that theory, though it is working for me most of the time only once in awhile I get a fail, usually big files (1 gig plus) and also happens on photos though this is much rarer, some other stats, the drives I copy to are fat 32 format on a WD nas, is this consistent with others? this does not happen at all for me between other Mac formatted devices and drives on my network, also does not seem to happen to files not edited on the source device, also is this consistent with others?
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Oct 7, 2015 9:21 PM in response to haroldfromsaby TruthSkunk,All my network shares are formatted Reiser3 and shared via SMB so they're supposed to "smell like" Windows shares. I do this because they're consumed by both Windows and Mac machines.
It's interesting that you don't experience this issue with volumes shared by other Macs. I supposed these are formatted MacOS and shared via AFS. My NAS only supports Reiser3 formatting but I can share different ways (SMB or NFS with the current version). In order to share via AFS and "smell like" an Apple, I'd have to upgrade Slackware on my NAS. But I've been looking for an excuse to do that anyway so I'll give it a try when I get time and report back.
Good tip - something I haven't tried yet - thanks.
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Oct 8, 2015 8:37 PM in response to TruthSkunkby haroldfromsa,Hi truthskunk
No problems interested to see how this plays out we may be able to sort issue ourselves just need more input, I have shifted my NAS drives formatted fat 32 onto a mac mini as a server, I have left them as is just changed the host machine from WD to apple. Keeping in mind I have not had issue on apple equipment and apple formatted drives (HFS) Next step would be to change drives format (lot of effort) have tested putting file inside a folder and copying this seems to work, (not a lot of evidence though as have now changed conditions cant verify) pointing finger back at finder preview as previous theory.
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Dec 9, 2015 7:37 AM in response to haroldfromsaby MinorTechnicality,I don't know if this will help or not. I have been suffering the same problem copying images to a Buffalo Linkstation Duo. During the process to try and sort it out, I happened to copy the files from my Mac Internal SSD to myAirport Time Capsule and back again. Following this the files then copied to the NAS with no problems at all. I still haven't figured out why. It may be a contributory factor, but I am suffering the "unknown user" in the permissions section of GetInfo on the Time Capsule.
Hope this helps some or all of the sufferers.
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Dec 9, 2015 8:49 AM in response to MinorTechnicalityby MinorTechnicality,Following on from my previous post, I tried again, this time checking permissions at each stage. The interesting thing was that before I copied the files from my Mac HD My account had Read+Write, Staff had Read only and Everyone had read only. After copying to the TimeCapsule and back. All three accounts had Read+Write and again copied to the NAS with no problem. A quick experiment where I simply changed the permissions of a file on my MAC HD for Staff and Everyone to Read+Write showed that this solved the problem without needing to copy to the TimeCapsule and back.
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Dec 18, 2015 1:54 PM in response to james_wrightby Ombilgo1,Been fighting this issue primarily with MP4 and MKV files. I did not have either of the programs mentioned running, so that wasn't the issue. I was getting ready to try using CP in Terminal, but another post caught my eye.
I just moved the files into an untitled folder, then copied the folder over and finally removed the files from the folder at the other end. Not glamorous, but it seems to work and I can avoid Terminal.
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