Bug 1213402

The official AutoYaST documentation states: "The second stage runs only if it is strictly necessary, and the second stage can be turned off completely with the second_stage parameter." (https://documentation.suse.com/sles/15-SP5/html/SLES-all/cha-intro-to-autoyast.html)
However, it is necessary (and not specified !) to disable the execution of the "autoyast-initscripts" service in the control file, otherwise it will run on first boot despite the fact that stage2 has been disabled and will be stuck at boot. I don't know if this is a bug or if the documentation is incomplete on this subject. This problem concerns both openSUSE and SLE.
A second problem concerns the "Eye of GNOME" package, which is not present in any of the gnome, gnome_basic or gnome_x11 patterns. You need to add it manually in the software/packages section. This bug only affects openSUSE.
A third problem concerns the clock, which is set to "local time" by default and not UTC. This bug only affects openSUSE.
A fourth problem concerns the "base" pattern. It is installed by default in openSUSE but not in SLE. It must be added to the control file. This bug affects openSUSE or SLE, depending how you see things...
And last but not least, when you want to install SLE offline in fully automated mode, you need to add the repositories from the SUSE multi-product installation DVD, section add-on/add_on_products/media_url. Only urls starting with cd:/// and dvd:/// work (usb:///, file:/// and device:/// do not work) and only in VMware ! On a physical server, it cannot find the paths (error message). It is therefore impossible to install offline using AutoYaST on a physical machine...