Question about 'database disk image is malformed'

[MightyWaterways]

Hello,

I encountered this error today, and am not sure the cause. Hopefully you'll be able to give me some guidance.

I installed the latest (9.27) version
I downloaded a library book (Adobe DRM)
I downloaded Adobe Digital Editions
I didn't know what to do, so I put imported the book into Calibre and tried to add it to my device (Kobo Glo)
I got a message saying that my device wasn't authorized for Adobe DRM
I opened ADE, and authorized my device
I restarted ADE, Calibre, and my device many, many times trying to figure out why it was not working

I tried copying the book onto the device in File Manager (still didn't work)
I removed it
I uninstalled Calibre and reinstalled an earlier version (the one I was previously on)
I removed the book and metadata from Calibre completely, and re-imported it
I deauthorized my device from ADE. I reauthorized it.

I can't think of anything else to do.

ADE seems to now think that the book is on my device, and Calibre doesn't show me anything, and gives me this error. I can't find the book on my device and just want this to work.

Any advice would be helpful. Thanks.


calibre, version 0.9.23
ERROR: Error: Error communicating with device

database disk image is malformed

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 85, in run
File "site-packages\calibre\gui2\device.py", line 470, in _books
File "site-packages\calibre\devices\kobo\driver.py", line 1658, in books
DatabaseError: database disk image is malformed

[theducks]

This is a Kobo damage DB (caused) error. Calibre can't work with damaged DB's (Kobo or any others)
There should be a Kobo menu item to cause it to be rebuilt

[MightyWaterways]

Hm...I've have to try that. Thanks.

[PeterT]

Originally Posted by theducks

This is a Kobo damage DB (caused) error. Calibre can't work with damaged DB's (Kobo or any others)
There should be a Kobo menu item to cause it to be rebuilt

Rebuild is done one of two ways. Either do a factory reset which will then need you to redo firmware upgrade as well as redoing the setup and reloading all content, or so a sign-out from the account (Settings Account sign out). This will delete the database and again make y you redo setup but will leave side loaded content alone and not need the firmware upgrades to be redone.