@tshering
Sure, that works to create a tgz archive, I use it also, thanks.
Apparently I thought that the KoboRoot.tgz must be zipped, like the one that the device downloads from the official update server. But now I figured out that it can be a pure KoboRoot.tgz as well. However, using a .zip one could rename it to any file name, using the .tgz, it must be KoboRoot.tgz.
And when I use 7za to create the zip file, for example:
Code:
"%the7zipexe%" a -tzip kobo-update.zip KoboRoot.tgz
Kobo downloads the zip file, but it can't uncompress it properly, and KoboRoot.tgz is not placed in /mnt/onboard/.kobo/ therefore the "update" does not happen.