After upgrade cannot open external drive

[Maik Qualmann]

> I ended up deleting Digikam and re-installing and building the database from
> scratch.

 This was unnecessary, you could have simply used the update function in the 
digiKam collection settings. From digiKam-8.2.0 we also use a collection UUID 
in a file, then the problem should no longer occur under macOS. According to 
previous analysis, Apple seems to change the partition UUID with a major 
update. That's why digiKam can no longer find the collection.

Maik

Am Freitag, 13. Oktober 2023, 15:04:14 CEST schrieb Mark Simon:
> I ended up deleting Digikam and re-installing and building the database from
> scratch.
> > On Oct 13, 2023, at 12:21 AM, Sebastian Beer <sebastian.beer66 at icloud.com>
> > wrote:
> > 
> > Did you try removing the collection and re-adding it?
> > 
> > Mit freundlichen Grüßen,
> > 
> > Sebastian Beer
> > 
> >> Am 12.10.2023 um 23:57 schrieb Mark Simon <mark.simon at sbcglobal.net>:
> >> 
> >> I upgraded Digicam from version 7.x to version 8.1.0 on my mac running
> >> 12.6.7 Monterey. My database is there but my photos are not. In the
> >> Preferences under Collections I see my collection listed under
> >> “Collections on Removable Media” with the right path
> >> /Volumes/MyDrive/Pictures. When I try to browse the path again I get the
> >> error “The selected folder does not exist or is not readable”. I checked
> >> that Digicam has Full Disk Access in Mac Security settings.