Please note also that I didn't make detailed notes during the installation process
so, some instructions may be wrong or incomplete! This guide is provided ďas is" and if you use it, that is at your own risk.
Thanks to LinuxQuestions.org members! Here I found most of the tips that I used to make things work!
* Backup configurations, databases, and user data in /home/user dirs
* Install/Upgrade Slackware from CD/DVD