【linux】grub加密

1.计算grub的MD5加密密码：

#grub-md5-crypt

Password: 
Retype password:
输入两遍密码进行确认以后，就会计算出你所输入密码的MD5加密值，如：$1$pFddV1$3X/XnIzEySuSF7fL9BUUj/
复制该密码进行MD5加密后的值。

2.配置grub

[root@server5 ~]# cat /boot/grub/grub.conf     

# grub.conf generated by anaconda

#

# Note that you do not have to rerun grub after making changes to this file

# NOTICE:  You have a /boot partition.  This means that

#          all kernel and initrd paths are relative to /boot/, eg.

#          root (hd0,0)

#          kernel /vmlinuz-version ro root=/dev/sda2

#          initrd /initrd-version.img

#boot=/dev/sda

default=0

timeout=5

password --md5 $1$pFddV1$3X/XnIzEySuSF7fL9BUUj/

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

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.18-308.el5)

        root (hd0,0)

        kernel /vmlinuz-2.6.18-308.el5 ro root=LABEL=/ rhgb quiet

        initrd /initrd-2.6.18-308.el5.img

 

3.重启后生效