Aura HD and Calibre: DatabaseError: database disk image is malformed

[rantoie]

I'm getting this error when I connect my device and launch calibre:

database disk image is malformed

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 86, in run
self.result = self.func(*self.args, **self.kwargs)
File "/usr/lib/calibre/calibre/gui2/device.py", line 490, in _books
mainlist = self.device.books(oncard=None, end_session=False)
File "/usr/lib/calibre/calibre/devices/kobo/driver.py", line 1764, in books
for i, row in enumerate(cursor):
DatabaseError: database disk image is malformed

I saw somewhere that I should try a reset. The procedure seems to be to power off the device, stick a paperclip in the hole and then the device should reset. That doesn't happen when I put the paperclip in the hole.

I am apprehensive of doing a full factory reset, I've done a lot of hacking on this device, getting ssh access, setting up koreader and the launcher, changing various settings etc. If I factory reset, I'm going to loose all of that, aren't I?

[PeterT]

Fixing the database does not need a full reset; from the Settings | Accounts menu select SIGN OUT in the Kobo account section.

This will drop the database, remove the WiFi, Pocket and Adobe account authorizations but will not reset the f/w or delete side-loaded content.

[davidfor]

The pin-hole reset is a way to restart te device when it has hung. It shouldn't change anything on the device.

Doing a logout on the device is the usual way to fix this. It will restart, create a new database and take you through the setup. It will check for new firmware, but if you are already on 3.2.0, it shouldn't cause any problems. I don't know what affect this will have on the hacks you have installed.

[DNSB]

Originally Posted by rantoie

I saw somewhere that I should try a reset. The procedure seems to be to power off the device, stick a paperclip in the hole and then the device should reset. That doesn't happen when I put the paperclip in the hole.

To trigger a factory reset using the pinhole reset, hold in the light button (Glo, Aura HD, Aura) or the home button (Touch), press the paperclip reset switch and release the light/home button when the LED starts rapidly flashing -- usually referred to as discoing. For the Mini, there is no physical button but some arcane suggestions on triggering a hardware factory reset have surfaced now and then.

Just pressing the reset switch is similar in effect to powering the device off and back on. It can be useful when your ereader is frozen and will not respond even to holding the power switch for 15-20 seconds to power off.

Regards,
David

[jackastor]

Originally Posted by rantoie

I'm getting this error when I connect my device and launch calibre:

database disk image is malformed

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 86, in run
self.result = self.func(*self.args, **self.kwargs)
File "/usr/lib/calibre/calibre/gui2/device.py", line 490, in _books
mainlist = self.device.books(oncard=None, end_session=False)
File "/usr/lib/calibre/calibre/devices/kobo/driver.py", line 1764, in books
for i, row in enumerate(cursor):
DatabaseError: database disk image is malformed

I saw somewhere that I should try a reset. The procedure seems to be to power off the device, stick a paperclip in the hole and then the device should reset. That doesn't happen when I put the paperclip in the hole.

I am apprehensive of doing a full factory reset, I've done a lot of hacking on this device, getting ssh access, setting up koreader and the launcher, changing various settings etc. If I factory reset, I'm going to loose all of that, aren't I?

To ensure you don't have this issue again and again, always make sure you eject your device and wait for the computer/software to proper eject it b4 removing the device. Failure to do so will result in this error repeatedly over and over.

regards

Jack

[Harkos]

Had the same problem. With Nirsoft USBdeview (freeware) I deleted the Kobo USB connection history on my computer. Kobo not connected! After that calibre communicates again with the reader.