统信UOS防止破密码：增加 grub 口令

grub-mkpasswd-pbkdf2

#输入密码，使用伪随机函数生成密钥 grub.pbkdf2.sha512.10000.......

vim /etc/grub.d/40_custom

set superusers="uos"

password_pbkdf2

uos

grub.pbkdf2.sha512.10000.6D67AA5F717AFE93D368A57804BC21B136DCA9D30CBA6F74D9A

BCBA32E76B59758E04A5D0A766734EDE586DEA2EC3E7F786F127FB55C7922826455612B54

06F5.30060B65CA1D5736364D109C7CB6459E5E2851EFF460E43D72AAB8A592784B2D5353D

9B51EE1EAFBC45AF739417CFC5EC12EE92D546E9BC6A7BB58444BC27455

update-grub

重启验证