Aura getting 'Unable to Communicate' message

6charlong · 07-07-2014, 03:45 PM

My Aura keeps getting an "unable to communicate with device" message when I connect to my Mac. Calibre reads the contents of the Aura and an icon for it appears on the Mac's home screen.

This is the error report:

calibre, version 1.43.0
ERROR: Error: Error communicating with device

database disk image is malformed

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 86, in run
File "site-packages/calibre/gui2/device.py", line 490, in _books
File "site-packages/calibre/devices/kobo/driver.py", line 1765, in books
DatabaseError: database disk image is malformed

I recently updated Calibre but it's awhile since the Aura updated. This has never happened in Calibre before. Does anyone know what's going on?

davidfor · 07-07-2014, 09:02 PM

That error means the database on the device is corrupt. You would probably have noticed problems like not remembering the reading status of books if you powered the device off.

If you have a recent backup, you can restore it. Otherwise the fix is to logout on the device and back in. That will create a new database and reload the books. Occasionally, that isn't enought and you need to do a factory reset.

booklover6 · 07-07-2014, 09:58 PM

I just ran into that message after putting an SD card in my aura for the first time. I did format it first. Calibre would load some books to the card, but give the communication error with others. After reading this, I power cycled, and the aura informed me that it couldn't read the micro SD card! I removed it. I'll try formatting it again.

6charlong · 07-08-2014, 03:16 PM

Quote:

Originally Posted by davidfor

That error means the database on the device is corrupt. You would probably have noticed problems like not remembering the reading status of books if you powered the device off.

If you have a recent backup, you can restore it. Otherwise the fix is to logout on the device and back in. That will create a new database and reload the books. Occasionally, that isn't enought and you need to do a factory reset.

Thanks for your help. I tried what you suggested but nothing worked so I did a factory reset. That worked.

Thanks again.

07-07-2014, 03:45 PM	#1
6charlong friendly lurker Posts: 896 Karma: 2436026 Join Date: Apr 2007 Location: US Device: Kindle, nook, Apple and Kobo	Aura getting 'Unable to Communicate' message My Aura keeps getting an "unable to communicate with device" message when I connect to my Mac. Calibre reads the contents of the Aura and an icon for it appears on the Mac's home screen. This is the error report: calibre, version 1.43.0 ERROR: Error: Error communicating with device database disk image is malformed Traceback (most recent call last): File "site-packages/calibre/gui2/device.py", line 86, in run File "site-packages/calibre/gui2/device.py", line 490, in _books File "site-packages/calibre/devices/kobo/driver.py", line 1765, in books DatabaseError: database disk image is malformed I recently updated Calibre but it's awhile since the Aura updated. This has never happened in Calibre before. Does anyone know what's going on?

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07-07-2014, 09:02 PM	#2
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303822 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	That error means the database on the device is corrupt. You would probably have noticed problems like not remembering the reading status of books if you powered the device off. If you have a recent backup, you can restore it. Otherwise the fix is to logout on the device and back in. That will create a new database and reload the books. Occasionally, that isn't enought and you need to do a factory reset.

07-07-2014, 09:58 PM	#3
booklover6 Grand Sorcerer Posts: 6,541 Karma: 14008730 Join Date: May 2008 Location: PA (USA) Device: Kobo Clara, 2E, Libre 1, PW4, PW5, 2022 Kindle, Kobo Libre Colour	I just ran into that message after putting an SD card in my aura for the first time. I did format it first. Calibre would load some books to the card, but give the communication error with others. After reading this, I power cycled, and the aura informed me that it couldn't read the micro SD card! I removed it. I'll try formatting it again.

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