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Old 05-10-2018, 01:33 PM   #31
DNSB
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Originally Posted by bernard.ryefield View Post
I had no problem sending the books except for one which was readable/transferable and that I had to repair.

But now comes the really big problem: "CorruptError: database disk image is malformed" at the connection (database backup). The books have the green checks though. When I run the KoboUtilities verify command I get the same error message.
At this point, if you don't have a recent backup of your database that you could try restoring, you can either logout from your Kobo which will recreate the database when you log back in or do a full factory reset which will also create a new database but will also wipe the internal storage of your Kobo.
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Old 05-10-2018, 04:21 PM   #32
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At this point, if you don't have a recent backup of your database that you could try restoring, you can either logout from your Kobo which will recreate the database when you log back in or do a full factory reset which will also create a new database but will also wipe the internal storage of your Kobo.
I can read my books on the device, add them from Calibre as usual etc...I don't know why KoboUtilities says the database is corrupted.
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Old 05-10-2018, 04:41 PM   #33
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I can read my books on the device, add them from Calibre as usual etc...I don't know why KoboUtilities says the database is corrupted.
Because it is corrupt.
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Old 05-10-2018, 05:32 PM   #34
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Because it is corrupt.
I guess from KoboUtilities point of view it is, though from Kobo Glo point of view it isn't, which was my point.
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Old 05-10-2018, 08:12 PM   #35
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I guess from KoboUtilities point of view it is, though from Kobo Glo point of view it isn't, which was my point.
The database is corrupt. But, a lot of the function on the device works from in-memory copy of the data. It doesn't need to constantly reread the data as most of the metadata is in memory. It will try to write the data to the database as things change, but these will probably fail. Then, if restart the device, it will attempt to read the database but all those updates will be missing and you will suddenly be seeing old data. And if the problems in the database are bad enough, the firmware can throw it away and start the setup process.

There is very little you can do to fix this. Sometime running a compress on the database will work. But, that usually only works if the errors are in an index. It can also work if the errors are elsewhere, but you usually lose some data. And if you lose data, there is probably some inconsistencies that could cause other problems.

This isn't going to get better. You need to fix it. If you have a database backup, you can restore that. Otherwise, you will need to do one of the things that DNSB suggested.
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