Lightroom: Import dialog does not show available drive to import from.

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  • Updated 5 years ago
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  • (Edited)
Why doesn't lightroom show my secondary drive on the import dialog box. It shows my boot up drive, my network hard drives, and my attached hard drives all listed underneath the devices region on the left panel however for whatever reason, it will not show a specific drive.
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Isaac Joseph

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Posted 5 years ago

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Victoria Bampton - Lightroom Queen, Champion

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Mac or Windows? If Windows, what's the drive letter?
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Isaac Joseph

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Windows 7 Professional. the drive letter is A. i tried changing the drive letter to B with no success. It does not show in the destination folder either on the right where i would like to import the photos to. See attached picture. Drive A is not available.
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Victoria Bampton - Lightroom Queen, Champion

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Change it to a later drive letter - not A or B. They used to be reserved for floppy drives, way back in time, and Lightroom still ignores them for some unknown reason.
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Isaac Joseph

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I changed it to a different letter drive. Now when i open lightroom, i get a message saying "assertion failed!"
any idea how to get rid of that message?
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Victoria Bampton - Lightroom Queen, Champion

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Where exactly are you getting that message?
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Isaac Joseph

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As soon as i load lightroom. i cannot even open the program unless the folder A:/My Pictures/Lightroom (the folder containing the original catalog file) exists. I have even given an external hard drive the letter A and created that folder which was the only way for me to even open the program. If i uninstall and re-install lightroom, it looks for the original catalog in that folder. is there a file somewhere that keeps a history of previous catalogs or a database of catalogs? i have tried changing the default catalog that lightroom uses when it opens but still doesnt solve the issue.
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Victoria Bampton - Lightroom Queen, Champion

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Ah, I didn't realize the catalog was on that drive. Have you redirected your main My Pictures folder to that location in Windows (if so, how), or have you just created a folder on there called My Pictures?

Hold down the Ctrl key while starting and it'll let you create a new catalog in the location of your choice - for the sake of testing, put it on a different drive and just open it. If it'll open ok on there, then we just have to figure out what's going on with the A drive.
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Isaac Joseph

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I just created a folder on there called My Pictures just to see if that was the issue. I have tried opening while holding Ctrl key and it asks me to create a new catalog. i select the folder and name the catalog and as soon as i click create, it generates the folder and the catalog file and prompts me again with the message 'assertion failed' and closes the program again. If i try just opening a catalog, i get the message directly.

Also, because i moved the entire catalog to a new folder (now lettered 'V'), the catalog contains links to all the files that were previously in the A drive.
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Victoria Bampton - Lightroom Queen, Champion

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But you weren't getting this message when you had it set to B, is that right?
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Victoria Bampton - Lightroom Queen, Champion

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Try the instructions in this thread - look out for the posts by Simon Saith http://forums.adobe.com/message/6283967
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Official Response
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Isaac Joseph

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Thanks for link but this fix only applies if my my original catalog was on the bootable C drive. nonetheless, i already have a Pictures folder in the c:\users\(user)\ folder however the original location of my catalog was on a drive letter that no longer exists. is there a file that keeps a log of previously opened lightroom catalogs?
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Isaac Joseph

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I believe when i had the drive set to B, lightroom was already open if im not mistaken when i changed the drive letter.
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Victoria Bampton - Lightroom Queen, Champion

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Yes, the preferences file contains the list of where the catalogs are stored - C:\Users\[your username]\AppData\Roaming\Adobe\Lightroom\Preferences\

So to clarify, when the catalog drive is letter A, Lightroom continues to open for you as expected? But it fails with an assertion error when you change the catalog drive to a different drive letter?
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Isaac Joseph

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I had tried to delete the preferences file already and have LR automatically recreate it but that didn't work either.

To clarify, when a drive letter A exists with a Pictures folder in it, LR continues to open for me as expected, however the catalog still points to the original A:\... folder locations so i would need to update the catalog by importing pictures from the new V:\...

When i remove the the drive letter A (the new hard drive i attached temporarily), lightroom asks me to create a new catalog (even though the existing default catalog points to the new v:\... location). when i input a filename and location as to where the catalog should be located and press create (or OK, dont remember which button it was), it fails with the Assertion error.

In any case, i got really frustrated and just reformatted my hard drive (which fortunately has barely anything on it :) ) and reinstalled windows which did the trick :-D...i installed the catalog on my c: drive and my new drive letter V (thanks for that idea) is showing on the import dialog box.

All is good! thank you all for all your help :-D - now just have to wait all day to import my 100K + pictures.
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Victoria Bampton - Lightroom Queen, Champion

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LOL That's one way of fixing it!!!