[davidfor]

Originally Posted by JulieV

Took receipt of my KA1, connected to Calibre, uploaded all my library (approximately 4000 books.) All appeared well, opened and quickly read my current book club selection after noting that I needed to try and regain the features noted above. Posted this thread and got your reply, and researched other related topics here and around the web.

The calibre viewer is good and I use it all the time if I want to look at something while using my PC. But, it is very forgiving of errors in books. Whereas the epub renderer on the Kobo devices, and many other devices, is not. An error in a stylesheet an mean all of the stylesheet will be ignored. An error in the nesting of tags will mean the rest of that chapter will not be shown.

I then installed and configured the following plugins: Kobo Utilities, Kobo Books, Goodreads Sync, and Kobo TouchExtended. I then synced the goodreads and made sure I got bookshelves defined, date read, and Read indicator functioning.

All ready and excited to add this functionality to my KA1, I connected it, let it sync up to Calibre, added some newer books I'd collected during the housekeeping, and.....

Once I ejected the KA1 from Calibre, gave an error and asked for factory reset. After reset, looks like it may have updated to newer OS in the meantime as the layout looked a bit different when it booted back up.

Sorry, can't comment on the factory reset. It shouldn't happen, but occasionally it does. The updated firmware was just timing. Or, if during the initial setup there were network problems, it might have missed updating the first time.

Added back accounts/settings on the device, synced to Calibre and uploaded all my books again--except for 5 or so which gave error during import. I set those aside for the moment. Ejected it and it went thru processing time (very long!) and finally came to home screen. Noting around 500 books. Missing over 3500 books.

When you sideload books and eject the device, the device processes the books. It adds details from the books to an internal database. The database is used for the library listings and to store things like the reading status and bookmarks.

If processing a book fails, then the device stops processing the rest of the books. Anything added before it will be in the library, the rest won't. For this reason, I usually advice sideloading in smaller batches. Or at least doing that until you are happy with the device and confident the books won't cause problems. Once you get to this state, the only fix is to remove the bad books and try again. Unfortunately, finding the bad books is the problem. There isn't any logging to tell you which failed, so the simplest thing is to remove all non-processed books and add them in smaller batches.

Connected back to Calibre, attempted to re-add missing books. Ran out of space on device.

That's strange. If the books are already on the device calibre should just be replacing the files. Of course, if you were very close to full and copying a particularly big book, it might the disk on that book before it removed the original copy.

Deleted books from device thru Calibre. Imported books to device. Ejected. KA1 hung with up to 2 flashing squares on blank screen. Would not respond to power off/on. Forced to do factory reset.

Went thru setup and Calibre sync again, barring the 5 problem books.... Out of space. Researched and found that books were only missing in Calibre and device UI. They ARE present on the KOBOreader if I look at the device thru Finder on my Macbook Pro. Deleted books thru Finder. Ejected device, processed. Confirmed no books in KA1 UI. Reconnected to Calibre, confirmed no books listing on device in Calibre as well as in Finder.

Uploaded all books, sans problematic books. Confirmed all list on the device in Caliber. Ejected. Processed forever. Confirmed all books on Device UI. Reconnected to Calibre, confirmed all books still showing on device in Calibre. Ejected device. All good.

So, when you looked at the library list on the device is listed enough pages to contain all the books. I'm not sure how many books per page are listed on the Aura ONE, but assuming there were 10 per page, it should have shown a page count of about 400. Or you could look in the "Manage downloads" page of the settings to see the exact counts of books.

Nope. Picked up KA1 to look for specific book to read, not found. Reconnected it to Calibre, only 900 or so books listing via Calibre. Confirmed book I was searching for is not listing as uploaded to device in Calibre. Confirmed book DOES exist (as well as the other missing 3100-ish books on the device when looking thru Mac Finder.

My first reaction to that is "impossible". I can't think of a way for that to happen without something else happening. For this to happen, those 3100 books would need to be removed from the internal database somehow. Calibre won't do that unless you tell it to. The device can't do that as you can only delete one book at a time. And in both cases, the file would have been removed. The only way I can come up with is if the database on the device became corrupted. But, if that was the case, you would have gotten an error when connecting to calibre. Some corrupt database problems don't get picked up during the calibre processing, but I doubt a problem were 3100 books were missing would not show up.

In any case, you can check the database using the Kobo Utilities plugin. Under the "Database" menu is an option to do this. It will either return "OK", or list the errors. If there are errors, there isn't anyway to fix them except signing out of the Kobo account on the device and signing back in.

Problem with KOBO OS upgrade? Problem with any of these plug-ins or their configuration? Faulty KA1 hard drive? -- My concern about having a faulty hard drive in my KA1 is only allayed by the fact that they do list thru Finder, so the harddrive seems to be holding onto the books. Corrupted file somewhere?

There is pretty much no way to configure the driver that will prevent the books getting onto the device and processed. The processing might fail if there is a problem with a book. When you reconnect the device to calibre, it will show what books are on the device and correctly processed into the device database. It does not look for books not processed into the database. You can see these books in the Device List.

Calibre will also show which books on the device match those in the calibre library. In either the library list or device list, there will be a green tick if the book matches. As you sent the book from calibre, strictly, all the books should match. But, there are some problems. Any book with multiple authors will probably not match. The way calibre writes the authors to the metadata doesn't agree with the way the device reads the metadata. Both are right, but the Kobo device is taking the minimum it can and only sees the first author. To fix this, you need to use the device list and the "match books" function. This can explain why sometimes it seems books have disappeared from the device when connected to calibre. But, all the books should be in the device list.

Some of what you describe does make me wonder if the device is faulty. The unexpected triggering of factory resets make this likely. The issues with books disappearing from the database is strange but doesn't directly point to a problem with the device. It's more likely to be a side-effect of something else.

Something missing in your report is if at any time you powered the device off. If there are problems, such as a corrupt database, then powering off and on will mean the database is reread. And that will usually mean older data that is missing new books and any changes in reading status. That could explain the missing books. But, I'd still expect an error when connecting to calibre.