Installed Leap 15.2 NET dated 5/29/20 in VirtualBox 5.2.42 (the current 5.2
branch release) using the "Generic Desktop" pattern

Installation went fine, but as soon as installation was done an the install
attempted to boot into the graphical.target, two VirtualBox errors briefly
displayed on the screen and then the screen went black and locked. This
required a guest hard poweroff.

The only way to get 15.2 to boot to a usable console was to boot in Rescue
Mode, chroot and change the default.target to the multi-user.target which then
boots fine.

15.2 should not hardwire and install VirtualBox 6.0.x guest modules. They are
now incompatible with VirtualBox 5.2 branch. Instead of a few annoying
messages, as on 15.1, they now lock X on 15.2.