Linux Grub加密

1 、设置明文密码

[root@ds-education1 ~]# grep -v '^#' /etc/grub.conf

default=0

timeout=5

password 123456  #GRUB 启动密码

 

splashimage=(hd0,0)/grub/splash.xpm.gz

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.18-194.el5)

         root (hd0,0)

    password 123456  # 启动操作系统密码

         kernel /vmlinuz-2.6.18-194.el5 ro root=LABEL=/ rhgb quiet

         initrd /initrd-2.6.18-194.el5.img

[root@ds-education1 ~]#

 

2 、设置密文密码

[root@ds-education1 ~]# grub-md5-crypt

Password:

Retype password:

$1$Qh6pX0$F4erzOSNARZoGvYtErIpx/

[root@ds-education1 ~]# grub-md5-crypt  // 使用md5 生成加密密钥

Password:

Retype password:

$1$Qh6pX0$F4erzOSNARZoGvYtErIpx/

[root@ds-education1 ~]# vi /etc/grub.conf

[root@ds-education1 ~]# grep -v '^#' /etc/grub.conf

default=0

timeout=5

password --md5 $1$Qh6pX0$F4erzOSNARZoGvYtErIpx/

# 加上―md5 的参数表示使用md5 加密grub

splashimage=(hd0,0)/grub/splash.xpm.gz

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.18-194.el5)

         root (hd0,0)

        password 123456

         kernel /vmlinuz-2.6.18-194.el5 ro root=LABEL=/ rhgb quiet

         initrd /initrd-2.6.18-194.el5.img

[root@ds-education1 ~]#