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Hello everybody! I'm having issues trying to bacukup a copy to new SD card. I could make an .img file from the previous SD no problem, but trying to copy it into a brand new SD gives the "unable to open destination disk" issue. The software has full access to disk, both SD work fine, and it does detect the new SD card when selecting the disk. However, two seconds after I select the .img file, this issue pops up.
Old SD is in FAT format, file size is 62 GB, new SD is FAT format, 64 GB completely empty. Any idea how to solve this? Thanks!
One thing: SD cards are never the same size ... even if they state or report the same size, which may not be related, but good to know 😉
Being unable the destination device can be caused when a task (app or OS) is somehow preventing the SD card to be released for overwriting.
Eg. having something scan the disk, for whatever purpose (antivirus, previews etc).
You can try to unmount the disk with Disk Utilty - caution: UNMOUNT not EJECT.
After that this remains visible but is not "accessible" my most applications:
(see the disk being greyed out)
and still shows in APB:
This potentially would lock out unwanted access by other applications.
If that doesn't work, format the disk to some simple format like FAT32 (probably best in Disk Utiltiy but you could try doing a NOOBS format in APB).
Let me know if this fixed the issue 😊
@Hans Thanks a lot Hans! Unmounting the disk by hand solved the issue :)
Awesome! 😊
That does mean some application, or macOS, is holding the SD card hostage for some kind of activity.
Nice to hear this fixed it!
