Linux启动引导加密是提高Linux安全性的一种措施，这里以RedHat Linux为例来进行Linux启动引导加密的设置，实验是提高我们技术的一种手段，我们一定要亲手试一试这种方法，完成技术的学习。

让linux启动引导加密方法 #vi /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=10 splashimage=(hd0,0)/grub/splash.xpm.gz title Red Hat Linux (2.4.18-3) password 12345678 root (hd0,0) kernel /vmlinuz-2.4.18-3 ro root=/dev/sda2 initrd /initrd-2.4.18-3.img ~ ~ “/boot/grub/grub.conf” 17L, 569C written [root@localhost root]# reboot

现以上提示输入：12345678

系统才可以引导

注意：远程勿试！

以密文方式

[root@localhost root]# grub-md5-crypt Password: $1$jQORq$BbVuVrnQ60b87FlXP/aau/ [root@localhost root]# vi /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=10 splashimage=(hd0,0)/grub/splash.xpm.gz title Red Hat Linux (2.4.18-3) password –md5 $1$jQORq$BbVuVrnQ60b87FlXP/aau/ root (hd0,0) kernel /vmlinuz-2.4.18-3 ro root=/dev/sda2 initrd /initrd-2.4.18-3.img ~ ~ “/boot/grub/grub.conf” 17L, 598C written [root@localhost root]# reboot

这里就进行了Linux启动引导加密的设置。