![]() They shouldn't be different, but there is a chance that the the first open has left something in a bad state.Īnd have you tried another machine? Checking with an older iMac would help to see if it was this version of El Capitan. I would need to see a debug log to work out which it was. The database gets opened twice, once for the main memory and once for the card. If it has most of your books, you don't want to have them processed into the library before doing the tests.Īnother test is to connect without the card. If you do this, make sure you take the SD card out. Then you can decide whether to restore the saved data or start again. After that, do the factory reset and test with a smaller number of books. You can test the factory reset safely if you take a full copy of the user partition from the device. Maybe it us something related to the size. I think it is all now pointing towards the problem being caused by the iMac not ejecting the Kobo device properly.ġ2000 books? Exactly how big is the database? For about 2000 books, I'm at about 85MB. ![]() I think this suggests that the problem is not caused by a corrupted database. So I immediately used the Firefox SQLite Manager to open the' KoboReader.sqlite' database directly from the Kobo and ran the "Check Integrity" option when it finished it said 'Checked Integrity of the database using "PRAGMA integrity_check". "Error communicating with device: unable to open database file". ![]() Then I reconnected the Kobo to the iMac, waited for the device and the card to mount, ran Calibre and. As usual, the Kobo device also ejected itself and the iMac complained about it not being ejected properly. So I used Calibre to remove the new book I copied to the Micro SD card, quit Calibre and ejected the Micro SD card from the iMac. Then I connected the Kobo to my iMac and ran Calibre and. The Kobo booted up and the book I copied across was there. Then I inserted the Micro SD card back into the Kobo and switched on the Kobo. Then I ejected and removed the Micro SD card from the iMac. Then I copied the book from my iMac to the Micro SD card. Using an adapter I then plugged the card into my iMac (it has a card slot). Starting at the position where Calibre can't open the database, today I tried a different procedure for copying a book to the Micro SD card.įirst I switched off the Kobo and removed the Micro SD card. ![]() The Epic Saga of the Kobo Aura HD continues. I ran its "Check Integrity" option and when it finished it said 'Checked Integrity of the database using "PRAGMA integrity_check". I got the same "unable to open database file" error message.ĭirectly after quitting Calibre I used the Firefox SQLite Manager to open the' KoboReader.sqlite' database directly from the Kobo. The book I added to my library is now showing up on my Kobo.ĭirectly after quitting the Kobo desktop device I reconnected the Kobo and ran Calibre. When I used the Kobo application's eject button, the Micro SD card ejected okay but the Mac put up a message saying the Kobo device itself hadn't been properly ejected. Also the Kobo desktop application synced with the device okay. Today I used it to add a book to my library directly after Caliber said it couldn't connect to the database. The Kobo desktop application seems to work okay. When you eject one, the other gets ejected as well and the Mac complains that the device hasn't been ejected properly. I think the problem might be caused by the Mac not ejecting the kobo device and the micro SD card properly.
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