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davidfor · 09-09-2020, 11:43 PM

All the Kobo devices and all firmware should support comic books. And adding a CBR or CBZ should be enough for them to be imported and read.

The reasons that I can think of for this not to happen are:

The database is corrupt. This can mean the imported books are not saved to the database and hence not shown when the database is reread. But, if this is the case, I would expect other problems such as losing the reading status of recently opened books.
A bad book blocking the import. The import can fail reading the books. When it does, it blocks processing any other new books. And it will continue to do this while it is there. The only fix is to find the bad book, remove it and fix it. This is a much less common problem than it was. I don't know if that means that Kobo has improved the handling, or if book creation has gotten better. Probably a bit of both.
The books are put in a location that isn't being processed. In older firmware, the import process ignored any directory or file whose name started with a dot. The current firmware looks in them, but, it is possible to add a config file entry to ignore directories. If you have done this, it might be the problem.
Sort or filtering being used isn't showing the book. It's sounds stupid, but, I have added books couldn't find them, added them again, still couldn't find them. Then I realised I'd changed the sort. Or, that the name wasn't what I was thinking it was. And if the clock on the device is wrong...

If the above doesn't answer it, then one question is whether the importing screen is shown when you eject the device. Try connecting to the PC and then ejecting without adding a new book. If the importing screen is shown, then it is finding books.

You can also turn on some logging. In the search on the device, enter "devmodeon". This enables developer mode and the "Developer options" on the "Device information" screen of the settings. There are various options including logging options, but, the base level should include logging of import errors. The log is in the ".kobo" directory with the name "syslog" and the time when it was created. If you do what I suggest above and connect again, this should be created and hopefully will show an error. Some are obvious, some need some interpretation. If there is an error, post it here and hopefully the brains trust here will have an idea of what is wrong.

09-09-2020, 11:43 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	All the Kobo devices and all firmware should support comic books. And adding a CBR or CBZ should be enough for them to be imported and read. The reasons that I can think of for this not to happen are: The database is corrupt. This can mean the imported books are not saved to the database and hence not shown when the database is reread. But, if this is the case, I would expect other problems such as losing the reading status of recently opened books. A bad book blocking the import. The import can fail reading the books. When it does, it blocks processing any other new books. And it will continue to do this while it is there. The only fix is to find the bad book, remove it and fix it. This is a much less common problem than it was. I don't know if that means that Kobo has improved the handling, or if book creation has gotten better. Probably a bit of both. The books are put in a location that isn't being processed. In older firmware, the import process ignored any directory or file whose name started with a dot. The current firmware looks in them, but, it is possible to add a config file entry to ignore directories. If you have done this, it might be the problem. Sort or filtering being used isn't showing the book. It's sounds stupid, but, I have added books couldn't find them, added them again, still couldn't find them. Then I realised I'd changed the sort. Or, that the name wasn't what I was thinking it was. And if the clock on the device is wrong... If the above doesn't answer it, then one question is whether the importing screen is shown when you eject the device. Try connecting to the PC and then ejecting without adding a new book. If the importing screen is shown, then it is finding books. You can also turn on some logging. In the search on the device, enter "devmodeon". This enables developer mode and the "Developer options" on the "Device information" screen of the settings. There are various options including logging options, but, the base level should include logging of import errors. The log is in the ".kobo" directory with the name "syslog" and the time when it was created. If you do what I suggest above and connect again, this should be created and hopefully will show an error. Some are obvious, some need some interpretation. If there is an error, post it here and hopefully the brains trust here will have an idea of what is wrong.