I want to copy (or move) my Photos Library (50 Gb, about 16'000 photos) to another external drive.
After about 80% copying time this error occurs in Mojave 10.14.4.
How do I resolve this issue?
Thank you in advance!
iMac 27", macOS 10.14
Hi léonie,
Your suggestion worked!
I copied all folders within .photoslibrary on the NAS to a new empty folder on a Mac OS formatted external drive one-by-one.
Then I renamed this folder to 'something.photoslibrary'.
Opening it in Photos resulted in an error message about inconsistencies and offering to repair the library which I did.
After a few minutes my 55'000 picures showed up and seem to be accessible as before on the NAS.
Thank you for your suggestion!
Hi léonie,
Your suggestion worked!
I copied all folders within .photoslibrary on the NAS to a new empty folder on a Mac OS formatted external drive one-by-one.
Then I renamed this folder to 'something.photoslibrary'.
Opening it in Photos resulted in an error message about inconsistencies and offering to repair the library which I did.
After a few minutes my 55'000 picures showed up and seem to be accessible as before on the NAS.
Thank you for your suggestion!
Is the destination drive used for Time Machine backups? Then you cannot move a Photos Library there because of permission problems.
You did not yet tell us, if the "Ignore Ownership on this volume" flag is available for the destination USB drive as shown in the screenshot posted by OT? Did you enable it?
Copying between drives with different filesystem formats may result in copy errors, because the supported filenames may differ, for example, if if one drive is case-sensitive and the other not.
I hope, the solution to copy the library with PowerPhotos will work.
If not, you try to identify the file, that is causing the read/write error. You can do that, by copying the subfolders of the library separately.
This way you can see how far the copy got, before the error occurred. The first file that did not copy will be the culprit.
Yes, that's the problem. Do you have a backup copy somewhere other than the NAS that you can restore to?
If not use the paid version of PowerPhotos to try to duplicate the library and choose the new EHD as the destination of the new library (first check to see if the free version will do the duplication).
How is the external drive that they are on formatted and connected to your Mac? Also same question about the destination external hard drive.
They should be formatted as shown in this screenshot:
OT, thank you for the quick reply.
My original .photoslibrary was built up on a Seagate RAID1 NAS, which probably is a Linux OS flavor.
The destination USB drive is formatted as MAC OS Extended (Journaled).
Could this be the problem?
BR from Switzerland!
Hi Old Toad,
There was no other Library except for the one on the NAS.
I checked with the folks at Fat Cat Software for a solution with PowerPhotos but they do not support copying Photolibraries on drives other than formatted with Mac OS.
So I followed the idea of léonie (see below) but there was another obstacle...
Thanks for your input!
Photos: error code -42 when copying .photoslibrary to an external drive
