Quote:
Originally Posted by vietchovui
Finally I figured it out. It is not a calibre or kobo bug. After reading through many posts on this forum, I know that calibre doesn't read database created by kobo (nickel), but creates its own database on kobo storage. So books are not sideloaded by calibre but by other ways (copy paste or via kobo cloud services in my case) will not be recognized by calibre. Thank you for your patient help @davidfor. |
Where on earth do you get that idea from? Not from the person who maintains the driver, especially as I have already explicitly stated that calibre reads the database on the device.
Calibre does maintain a file on the device. That is used to make it faster to load the books and to help where matching the metadata between the book on the device and in the library does not work for some reason. Removing this file, doesn't really harm anything.
If these books are being loaded by the Kobo Cloud service, and calibre cannot find them, then it means that Kobo Cloud is doing something. And looking at the code, it appears to be faking an SD card and putting the books on that. Luckily for them, it fools nickel into loading books from it, but, doesn't fool nickel enough to for when the device is connected to a PC. If you look at the details of one of the books in nickel, the file name will probably start with "/mnt/sd". If so, that is the reason the books are not being found.
There are ways they could do this without faking the SD card. There are other ways to get nickel to look for new books that would be compatible with the drivers in calibre.