MobileRead Forums - View Single Post - How to delete entries for deleted sideloaded books?

davidfor · 08-19-2019, 08:01 PM

Deleting the file from the device should work. The device will normally check for missing, added or changed books when you disconnect the device. If the books file is missing, it should remove most traces of the book from the internal database. And that should remove it from the lists. I do this frequently enough that I'm confident that it works this way.

The error message is misleading, but, sort of understandable. Kobo uses the Adobe RMSDK for reading epubs and PDFs. If it fails opening a book because it is missing, the error returned might be being misinterpreted, or the RMSDK might be returning the wrong error.

The only reason I can think of for this to happen is a corrupt database on the device. You can check this with a SQLite database manager. Or, if you use calibre, my Kobo Utilities plugin has a database check function. And, calibre can report errors when it connect to the device depending on exactly where the problems are in the database. If the database is corrupt, the device can sometimes recover, but unless you have a recent backup, you will need to sign out of your Kobo account on the device, and sign back in. Unfortunately, this will lose the reading status of all sideloaded books, but it will rebuild the database from scratch with the books currently on the device.

08-19-2019, 08:01 PM	#2
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Deleting the file from the device should work. The device will normally check for missing, added or changed books when you disconnect the device. If the books file is missing, it should remove most traces of the book from the internal database. And that should remove it from the lists. I do this frequently enough that I'm confident that it works this way. The error message is misleading, but, sort of understandable. Kobo uses the Adobe RMSDK for reading epubs and PDFs. If it fails opening a book because it is missing, the error returned might be being misinterpreted, or the RMSDK might be returning the wrong error. The only reason I can think of for this to happen is a corrupt database on the device. You can check this with a SQLite database manager. Or, if you use calibre, my Kobo Utilities plugin has a database check function. And, calibre can report errors when it connect to the device depending on exactly where the problems are in the database. If the database is corrupt, the device can sometimes recover, but unless you have a recent backup, you will need to sign out of your Kobo account on the device, and sign back in. Unfortunately, this will lose the reading status of all sideloaded books, but it will rebuild the database from scratch with the books currently on the device.