CentOS6.4 add a password to Grub

GNUGRUB introduction (& ldquo; GRUB & rdquo;) is a multi-operating system startup program from the GNU project. GRUB is the implementation of multi-boot specifications. it allows you to have multiple operating systems in your computer and select the operating system you want to run when the computer starts. GRUB can be used to select different kernels on the operating system partition or to pass startup parameters to these kernels. CentOS6.4Grub is a multi-operating system startup program from the GNU project. GRUB is the implementation of multi-boot specifications. it allows you to have multiple operating systems in your computer and select the operating system you want to run when the computer starts. GRUB can be used to select different kernels on the operating system partition or to pass startup parameters to these kernels.

CentOS 6.4 Grub and Password 1. enter "grub-md5-crypt" under the root user and enter the password set for GRUB to generate a set of encrypted numbers, which is the ciphertext encrypted with MD5. [Root @ X yum. repos. d] # grub-md5-cryptPassword: Retype password: $1 $ ur5kF1 $ zR3G/nvSnJG7J2RoE5dKs2 2. then add the obtained ciphertext to/boot/grub. in the conf configuration file, default = 0 timeout = 5 splashimage = (hd0, 2)/grub/splash.xpm.gz password -- md5 $1 $ ur5kF1 $ zR3G/nvSnJG7J2RoE5dKshiddenmenu ...... OK.