>> >> Please report both positive and negative results. > > A previously afftected Aures nino POS-terminal boots just fine with CentOS 7 and shim 15.8. > > Now I will test an affected machine (Aures Twist POS terminal) that runs CentOS 8 (well, usually runs CentOS 8, but not now, since it does not boot ... :=> The affected machine running CentOS 8 boots fine after upgrading to shim 15.15 Thanks for acting quickly, especially on a weekend.