linux为启动菜单加密码

为启动加密码：

grub-md5-crypt

Password: <==输入密码

Retype password: <==再输入一次

$1$6kWUD1$AIZWzT3Ye6CAF0aYceWxr1

复制这个MD5密码

vim /boot/grub/menu.lst

# 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/VolGroup00/LogVol00

# initrd /initrd-version.img

#boot=/dev/sda

default=0

timeout=5

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

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.18-164.el5)

password --md5 $1$6kWUD1$AIZWzT3Ye6CAF0aYceWxr1

root (hd0,0)

kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/VolGroup00/LogVol00 rhgb qui

et

initrd /initrd-2.6.18-164.el5.img

说明：此项功能还是可以破解的，因为用户可以通过编辑模式（e）进入菜单，按（d）删除密码字段并按下b就能通过启动流程

这样可以避免：

vim /boot/grub/menu.lst

# 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/VolGroup00/LogVol00

# initrd /initrd-version.img

#boot=/dev/sda

default=0

timeout=5

password --md5 $1$6kWUD1$AIZWzT3Ye6CAF0aYceWxr1

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

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.18-164.el5)



[b] password --md5 $1$6kWUD1$AIZWzT3Ye6CAF0aYceWxr1
[/b] root (hd0,0)

kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/VolGroup00/LogVol00 rhgb qui

et

initrd /initrd-2.6.18-164.el5.img

这个实验可以避免你的menu.lst在启动过程中被改乱