The latest way I found to do database corruption was when I was trying to duplicate the partial dismount that I noticed when I ran Windows XP on my desktop. In this case, I used a laptop where I started Calibre converting a collection of epubs to .kepub and adding them to the Kobo. Once the copy to the Kobo was started, I loaded Kobo Desktop so it started syncing and launched a backup of both the internal storage and uSD card using Teracopy so all were accessing the Kobo's storage at the same time.
After a couple of minutes, Calibre and Teracopy complained while the Kobo desktop app just sat spinning it's wheel. Looking at the mounted drives, both Kobo drives were gone from the display. When I removed the USB cable from the Kobo, it started processing and then locked up. After a restart, I grabbed a copy of the database and checked it using SQLite Database browser which gave a shopping list of errors.
Time for another factory reset.
Regards,
David
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