Anyone have issues with the latest kernel errata for OL 7.8 (kernel-3.10.0-1127.19.1.el7) not booting in a Secure Boot UEFI environment? I don't have much experience with Secure Boot UEFI, but it looks like the new kernel was not properly signed by Oracle with the whole grub2/shim issue of late. Kernels 3.10.0-1127.18.2.el7 and 3.10.0-1127.18.2.0.1.el7 appear to work for me.