Thread: Aura H2O Kobo won't connect to a PC anymore
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Old 08-06-2017, 03:57 AM   #21
DNSB
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Posts: 47,143
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by icallaci View Post
Here's the error message I just received when I connected my H202 to Windows 7, opened Calibre, and tried to compress the database:

Spoiler:
calibre, version 3.6.0
ERROR: Unhandled exception: <b>IOError</b>:IOError: disk I/O error

calibre 3.6 embedded-python: True is64bit: False
Windows-7-6.1.7601-SP1 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '7', '6.1.7601')
Python 2.7.12+
Windows: ('7', '6.1.7601', 'SP1', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 5, 4) && Count Pages (1, 8, 0) && KoboTouchExtended (2, 8, 2) && Kobo Utilities (2, 5, 2) && Diaps Editing Toolbag (0, 3, 5) && Quality Check (1, 9, 11) && Modify ePub (1, 3, 13) && Reading List (1, 6, 6)
Traceback (most recent call last):
File "calibre_plugins.koboutilities.action", line 1604, in vacuum_device_database
File "calibre_plugins.koboutilities.action", line 3306, in _vacuum_device_database
File "c:\t\t\apsw-9hooel\apsw-3.13.0-r1\src\cursor.c", line 236, in resetcursor
IOError: IOError: disk I/O error


And two minutes later, after disconnecting, rebooting, reconnecting, scanning and fixing the H202, opening Calibre and compressing the database a second time, everything worked perfectly.
When I've seen a Disk I/O error in the middle of an operation and looked at the drives connected to the laptop (Computer, This PC, whatever), the Kobo device had disappeared. My trigger for this was when I plugged directly to a USB 3 port on my laptop and copied a few hundred megabytes of data. Using the only USB 2 port or connecting through a USB 2 hub seemed to keep those unexpected disconnections from happening.
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