(In reply to Ulrich Windl from comment #2) > In > https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/index.html > I only found: > "4.1 Secure Boot: SUSE Linux Enterprise kernel and openSUSE signed Kernel > Module Packages" There is says: "The newly introduced openSUSE-signkey-cert package is required for openSUSE KMPs like virtualbox, but only in Secure Boot mode" AFAIK I'm not using Secure Boot, so does that apply? Maybe simply give a reference to the documentation you are talking about.