Thread: Calibre cannot remove deleted file on Kobo
View Single Post
Old 04-29-2014, 10:47 PM   #13
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by Olta View Post
Guys, you missed it - I did factory reset (from Settings).
Yes, you did say that before. I had forgotten about it when I was writing my last reply.
Quote:
Originally Posted by Olta View Post
have little question : does "koboreader.sqlite "file keep track of all-all books? Even deleted?
The KoboReader.sqlite contains details of all books on the device. When a book is deleted, almost all references to it are removed from the device. The newer devices keep some references that are used to calculate reading stats. But, there is nothing that would be causing these issues. The original Kobo might be different, but it more likely that it will keep less info than the newer devices.

All the things you are reporting point to a corrupted database. If the factory reset did not fix this, or it reoccurred shortly afterwards, then it suggests another problem. The obvious one is that you aren't safely ejecting the device from the PC. This can cause database corruption if files on the device are still open. The next likely is that there is hardware problem. Some people have had the internal memory fail and that caused these type of problems. Most of the Kobo devices use an internal micro SD card. These can be replaced and a disk image copied to the new card to solve this. I don't know if the original Kobo has the card or not.

At this point, what I would try is another factory reset. Then I would put my books on the device manually and see if that worked. Or I would disable the KOBO driver in calibre and use "Save to disk" to put the books on the device. The reason to do this is to eliminate any chance that the driver is damaging the database. It shouldn't, but, we need to prove that. Then, use the device for a while. If you get problems like you describe (forgetting books, unable to delete them, losing reading position) while using it, then the problem is the device.
davidfor is offline   Reply With Quote