# 删除旧内核
sudo dnf remove --oldinstallonly

# 恢复grub优先启动windows
sudo grub2-set-default 'Windows Boot Manager (on /dev/nvme0n1p1)'

# 导出到配置文件
sudo grub2-mkconfig -o /boot/grub2/grub.cfg

# 查看当前配置
sudo grub2-editenv list