I try to move one of my LR 6 catalogs to the newfangled LR CC. I get the following dialog:

LR dialog

Why can I migrate only once? I am planning to do a test migration and then later with a new CC library a proper migration.

And is there a way to re-do the migration later despite Adobe's warning?


This is not warning, but required action because LR Classic work with new/updated format of catalogs. And AFAIK you can't avoid this action and skip the step. You can continue to use LR 2015 with old format of catalog. But if you need LR Classic you must migrate the catalog.

And you can migrate only once because after the migration the catalog will be in new format you do not need/can't be migrated. To play with this migration you can create new catalog with few images inside and do the test.

From what I remember during last convert I did convertor actually create new catalog and copy there the data from original catalog. But I am not 100% sure about this.

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  • Sorry @Romeo Ninov, I propbably wasn't clear enough. My question is: Why can I migrate only once? (Because I am planning to do a test migration from the 6 catalog to teh CC catalog and then later with a new CC catalog a proper migration.) So Why can I migrate only once? – halloleo Mar 31 at 6:22
  • @halloleo, check my edited answer – Romeo Ninov Mar 31 at 6:26
  • thanks. Does this mean LR CC changes the old catalog and uses it in the same location then onwards??? – halloleo Mar 31 at 6:43
  • @halloleo, as I mention in the answer AFAIK it create new catalog, in new directory and keep the old one. But last convert I did was long time a go and I can't be 100% sure :) – Romeo Ninov Mar 31 at 6:49
  • That's exactly what I'm wondering: If LR CC writes the photos to a new location why can't I import the old library later on again (after I have cleaned out all my tests in the new location)? That's how I understand this sentence "Once a catalog is migrated it cannot be migrated it again." – halloleo Mar 31 at 7:05

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