по-другому пакет называется. поищи какие есть пакеты вообще. dnf search grub
grub-customizer.x86_64 : Graphical GRUB2 settings manager
grub2-breeze-theme.x86_64 : Breeze theme for GRUB
grub2-common.noarch : grub2 common layout
grub2-efi-aa64-modules.noarch : Modules used to build custom grub.efi images
grub2-efi-arm-modules.noarch : Modules used to build custom grub.efi images
grub2-efi-ia32.x86_64 : GRUB for EFI systems.
grub2-efi-ia32-modules.noarch : Modules used to build custom grub.efi images
grub2-efi-x64.x86_64 : GRUB for EFI systems.
grub2-efi-x64-modules.noarch : Modules used to build custom grub.efi images
grub2-emu.x86_64 : GRUB user-space emulation.
grub2-emu-modules.x86_64 : GRUB user-space emulation modules.
grub2-pc-modules.noarch : Modules used to build custom grub images
grub2-ppc64le-modules.noarch : Modules used to build custom grub images
grub2-tools.x86_64 : Support tools for GRUB.
grub2-tools-efi.x86_64 : Support tools for GRUB.
grub2-tools-extra.x86_64 : Support tools for GRUB.
grub2-tools-minimal.x86_64 : Support tools for GRUB.
ostree-grub2.x86_64 : GRUB2 integration for OSTree
terminus-fonts-grub2.noarch : Clean fixed width font (grub2 version)
============================= Имя совпадение: grub =============================
boom-boot-grub2.noarch : A set of libraries and tools for managing boot loader
: entries
grub2-efi-ia32-cdboot.x86_64 : Files used to boot removeable media with EFI
grub2-efi-x64-cdboot.x86_64 : Files used to boot removeable media with EFI
grub2-pc.x86_64 : Bootloader with support for Linux, Multiboot, and more
grubby.x86_64 : Command line tool for updating bootloader configs
grubby-deprecated.x86_64 : Legacy command line tool for updating bootloader