GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="default_hugepagesz=1G hugepagesz=1G transparent_hugepage=never iommu=pt hugepages=4 intel_iommu=on crashkernel=auto tcache.enabled=0 quiet" GRUB_DISABLE_RECOVERY="true"