On Wed, Sep 16, 2015 at 4:09 PM, Gordon Messmer <gordon.messmer at gmail.com> wrote: > After updates to grub2 and kernel in CentOS 7, today, systems will no longer > boot in Secure Boot mode. I'm not positive, but I think grub2 is the > culprit. I also suspect this is a grub2 issue. Perhaps, you may want to file a bug report [against grub2] at http://bugs.centos.org so that this can be followed properly. Akemi