On 20/11/2018 13:58, Jonathan Billings wrote: > On Tue, Nov 20, 2018 at 01:32:44PM +0000, lejeczek via CentOS wrote: >> hi guys >> >> I've one box where I just yesterday upgraded Centos. I wonder if that kernel >> upgrade process might somewhat troublesome. >> After that upgrade UEFI boot fails with: >> >> Failed to set MokListRT: Invalid Parameter >> Something has gone seriously wrong: import_mok_state() failed >> : Invalid Parameter >> >> Has anybody seen that? And maybe know to fix it? >> many thanks, L. > I don't know if it's related, but all of our dual-boot workstations > that used rEFInd for the boot selector stopped being able to launch > the shim EFI executable after upgrading to the 7.6 shim. I had to > manually change the refind configuration to point at the GRUBX64 EFI > executable instead (we turn off secure boot anyway, custom kernel > modules). > no dual boot for me, just Centos. Can you outline the steps you took to fix it? many thanks, L.