The grub2-mkconfig script silently ignores options in GRUB_CMDLINE_LINUX

Solution Verified - Updated -

Issue

  • RHEL 8's boot loader, Grand Unified Boot Loader (GRUB2) differs from the GRUB2 in RHEL 7.
  • An update to Red Hat Enterprise Linux 8 Beta results in /etc/default/grub changes no longer being included when issuing grub2-mkconfig -o /boot/grub2/grub.cfg. It seems that at least some options set there are now silently ignored.

Environment

  • Red Hat Enterprise Linux (RHEL) 8

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