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Old 09-12-2016, 11:42 AM   #1
jonnybegood
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Device: Kobo Glo Aura HD
CorruptError: database disk image is malformed
Hello
I have been using a KOBO Glo Aura HD together with Calibre for a few years
Few days ago, the reader behaved strangely while going through a book (would not let me go foward, or would jump directly to the end)
I deleted the bookmarks of that book, and it seemed to work fine.

Today, I went on the computer to add a few new books and got following message:

Quote:
ERROR: Error: Error communicating with device

CorruptError: database disk image is malformed

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 87, in run
File "site-packages\calibre\gui2\device.py", line 503, in _books
File "site-packages\calibre\devices\kobo\driver.py", line 1777, in books
File "c:\cygwin64\home\kovid\sw\build\apsw-3.8.2-r1\src\cursor.c", line 231, in resetcursor
CorruptError: CorruptError: database disk image is malformed
I have since then updated to latest Calibre version, started without plug-ins
but no success, still same message.

What could I possibly do to fix this?
Thanks!
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Old 09-12-2016, 08:54 PM   #2
kovidgoyal
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https://manual.calibre-ebook.com/faq...-touch-glo-etc
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Old 09-13-2016, 01:16 AM   #3
davidfor
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@jonnybegood: The fourth option in the link Kovid pointed to is the one. The database on the device is corrupt. Unless you have a backup you can use, the fix is sign out of the Kobo account on the device and then back in.
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Old 09-13-2016, 02:01 AM   #4
jonnybegood
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Thank you - It seems to be resolved.

I took following steps last night after browsing for information through the forum - similar to what you both advised, thanks !

Login out of Kobo account on device and back in had the side-effect that Kobo now needed a wifi connection for the setup and then happily updated its firmware (last time I had it connected to wifi was early 2015)

Anyway, I now turned off automatic sync, deleted the wifi data. Plenty crap on my home-screen which I will remove (I did it earlier, will find again out to do it)

Last night after the device completed its setup, all shelves seemed to be there, but most were showing empty.. and I'm not sure all books were properly accounted for.
This morning, I hooked the Kobo up to the computer, and Calibre ran through its routine without any error.

I then did (not sure if that helped) a "Update cached metadata on device".

Now, it looks like all shelves are populated, back in business !

Thanks
Jonny
Last edited by jonnybegood; 09-13-2016 at 02:03 AM.
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Old 10-02-2016, 05:35 AM   #5
bartveld
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Out of the blue, I've got more or less the same problem on my A1. Is there no other way than logging out of Kobo? I only have sideloaded books and I'd hate to have to deal with Kobo's unwanted uploads.
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Old 10-02-2016, 06:08 AM   #6
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This would work too, wouldn't it: delete all books and Kobo Reader.sqlite manually and then syncing with Calibre once more?
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Old 10-02-2016, 03:19 PM   #7
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I think you will find that deleting the sqlite database is the exact same as logging out of the account; you will have to redo the device setup.
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Old 10-03-2016, 02:27 AM   #8
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Yes. Of course. A bit dim-witted of me.
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