All,
I have an SSD running Ubuntu 20.1 with a working Kstars 3.5.0. It is formated as a single large disk (250 Gb) so I cannot just duplicate it to an SD card. The original SD card has been updated to Kstars 3.5.3 and is having all the issues of that version. Can I copy Kstars directories and files from the SSD to the updated SD card to restore Kstars to version 3.5.0? I should have saved the original SD card image with Kstars 3.5.0, but did not. So while I have a working system with the SSD I do not have a back up.
I will try it (not much to loose at this time) but just asking in case someone had successfully done this and found the right way to do it or issues.