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grub

files:

  • /etc/default/grub
  • /boot/grub2/grub.cfg
  • /etc/fstab
grub2-mkconfig

rebuild/bootloader install

drvpath=/mnt/drv
mkdir /mnt/drv
mount /dev/sdXroot $drvpath
mount /dev/sdXboot $drvpath/boot

mount --bind /dev  $drvpath/dev
mount --bind /sys  $drvpath/sys
mount --bind /proc $drvpath/proc

chroot $drvpath
grub2-install /dev/sdX
# regenerate drivers
dracut --regenerate-all --force

exit

umount $drvpath/dev
umount $drvpath/sys
umount $drvpath

plymouth

dnf list plymouth-theme-*

get active theme

plymouth-set-default-theme

set active theme (-R or –rebuild-initrd)

plymouth-set-default-theme spinner -R