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Originally Posted by kingzaphod
Similar messages to those that have gone before: my last IOError message
Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 87, in run
File "site-packages\calibre\gui2\device.py", line 510, in _books
File "site-packages\calibre\devices\kobo\driver.py", line 1761, in books
File "site-packages\calibre\devices\kobo\driver.py", line 161, in device_database_connection
IOError: IOError: disk I/O error
I've been in IT quite a while and normally figure out stuff like this but after spending hours and hours on this trying many permutations - I'm just having to grumpily give up and manage by transferring epub files using windows explorer - disappointed as in all other aspects I believe the Kobo Aura H2o Ed2 is a much better option for those who want the flexibility and capacity.
FYI I've got W10 on an HP Pavillion laptop - I have the latest Kobo firmware 4.7.10413 and Caliber 3.19.0. I've tried USB 2 and USB 3 ports, factory-resetting the Kobo, re-powering Kobo and laptop, with and without the Kobo extended Touch and utility plugins, I'm always seeing the same issue - once I've connected to Caliber after initialising everything and done something such as transferring ebooks ; the next connect I always get an IO error despite a reboot of laptop and Kobo - the first sync between Caliber and the Kobo cannot finish - it seems arbitrary.
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That all sounds like problems that have been reported and the suggestions in the thread above were the ways to solve or workaround it. But, it not being solved by restarting the PC and device between is a little different.
Do you have another PC you can test on? And if it works there, can you connect to the HP, and then connect to the other PC. If the above error happens, then it is something on the HP corrupting the disk or database before or during the eject.
Or reconnect to HP and use an SQLite management tool to check the database. And when the above happens, can you still see the device in Windows and use it?
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(FYI I've also tried using the device detection utility in Caliber and entered to USB parameters into the User defined USP port device plugin).
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The way you state that makes me think it didn't work. Is that right? With the User Defined driver, it doesn't access the database on the device, so there shouldn't have been an error like this. The driver will scan the drive looking for books. If you did get the above error, then you need to disable the KoboTouch driver and try again.
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If you have any ideas I'd be REALLY HAPPY to hear from you thanks ....! My suspicion is that its a bug in Caliber or an HP USB driver issue- I'm more inclined to think it's a Caliber derived issue but at Wits end trying to solve this....!! If you read this many Thanks.....
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And I tend to think it isn't a calibre bug. It might be a "calibre derived" issue as when you connect the Kobo device, it does a lot of work reading the database and otherwise accessing the drive. If there is something flaky in that connection, this is more likely to show that flakiness than simply copying a few files to the drive.