A) Explanation: Download the new kernel file and then install it. [root@desktop8 Desktop]# ls kernel-2.6.32-71.7.1.el6.x86_64.rpm kernel-firmware-2.6.32-71.7.1.el6.noarch.rpm [root@desktop8 Desktop]# rpm -ivh kernel-* Preparing... ########################################### [100%] 1:kernel-firmware ########################################### [ 50%] 2:kernel ########################################### [100%] Verify the grub.conf file, whether use the new kernel as the default boot. [root@desktop8 Desktop]# cat /boot/grub/grub.conf default=0 title Red Hat Enterprise Linux Server (2.6.32-71.7.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-71.7.1.el6.x86_64 ro root=/dev/mapper/vol0-root rd_LVM_LV=vol0/root rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-71.7.1.el6.x86_64.img