grub learning

/boot/config-2.6.32-71.el6.i686CONFIG_FRAMEBUFFER_CONSOLE=y/boot/grub/grub.confAdd vga=791 after kernel to modify grubmenu resolutiongrub-md5-crypt grub encryptionWrite in grub.confpassword --md5 passwordEntering single-user mode with grub to change forgotten root password, and wrong runlevelEnter the safe mode installation through the CD-ROM drive to modify the grub forgot password and other errors,chroot /mnt/sysimage

chainloader to be completed first draw a prize