The other thing I would like to point out, is this “How to” doesn’t cover a fix for the SD card, since I don’t have one.
If you get this error in Calibre:
The SONY database is corrupted. Delete the file /Volumes/READER/Sony_Reader/database/books.db on your reader and then disconnect reconnect it. If you are using an SD card, you should delete the file on the card as well. Note that deleting this file will cause your reader to forget any notes/highlights, etc.
Chances are that all files on your Reader are “locked” meaning they are read only. If you go to your file manager all the files on your Reader will have a little lock down on the right side of them and it will look like this:
I would like to point out, that in case of the error ALL the files will have this little lock! I just added one little lock for the sake of this “How to”!
In order to remove “books.db“, you need to get writing rights on the files on your Reader. You do that by typing this in your Terminal:
sudo mount -o remount,rw /media/READER
After you have typed your password, there will be no screen activity in your Terminal, but if you go to your file manager you will see that all the files on your Reader are unlocked.
Now you can remove “books.db“:
(Remember, you can always do the cliccie for a larger piccie).