Kobo can't open database

[Dei]

Dear Goyal, I used calibre on Mac Apple for a lot of years with great satisfaction, connecting with Kobo Touch..
Yesterday I updated calibre to 2.85.1 version and, on the same time (unfortunately), I updated my Kobo Touch.
After that when I connect my Kobo Touch to calibre, appears a window the reads "It's impossible to connect with database" : after a lot of tests I discovered the trouble is the SD card, If I leave the card from Kobo, calibre "sees" the ebooks inside the device.
I tried to format the SD card but it's the same problem.
I don't think the issue is calibre, because on another MAC Apple with calibre 2.83 (the version I used before without problem) happens the same problem with the SD card.
On windows platform everything is normal and good.
What can I do ?

[davidfor]

Originally Posted by Dei

Dear Goyal, I used calibre on Mac Apple for a lot of years with great satisfaction, connecting with Kobo Touch..
Yesterday I updated calibre to 2.85.1 version and, on the same time (unfortunately), I updated my Kobo Touch.
After that when I connect my Kobo Touch to calibre, appears a window the reads "It's impossible to connect with database" : after a lot of tests I discovered the trouble is the SD card, If I leave the card from Kobo, calibre "sees" the ebooks inside the device.
I tried to format the SD card but it's the same problem.
I don't think the issue is calibre, because on another MAC Apple with calibre 2.83 (the version I used before without problem) happens the same problem with the SD card.
On windows platform everything is normal and good.
What can I do ?

Sorry, that's my fault. I made a change to how the KoboTouch driver detected the drives from the device. Under some circumstances, they can be presented to calibre by the OS in such a way so that calibre and the driver sees the card as the main memory. Unfortunately my changed doesn't always work on a Mac. It is fine on a Windows machine as the method used was different.

I have a fix for this and have had a couple of OSX users test it it successfully. I will be checking this in shortly, and it should be included in the next beta build after that.

Also, the problem I was fixing was most likely to happen with the Touch. And I have had the most reports from Mac users. And the 4.4.x firmware included changes that seem to make it more likely to happen on the other OSes.

[kovidgoyal]

@Dei: this has nothing to do with this beta, see https://bugs.launchpad.net/bugs/1690391

[BetterRed]

Moderator Notice
These posts were moved from the version 3.0 beta testing thread

BR