无法在Redhat中为GRUB引导程序设置密码

Question

作为Salam-o-Alikum，我写了一个Ansible剧本，用于在RedHat和Ubuntu上设置GRUB引导程序密码，没有错误，并且我可以在两个位置的Grub2.cfg中看到更改。奇怪的是，当我重新启动两台机器时，Ubuntu机器要求输入用户名和密码，而Redhat机器不要求。我已经看到50多个教程的过程是相同的，而且非常简单，但是我不明白为什么它会那样。任何帮助将不胜感激。

这是我尝试过的。

Hardening.yml

   ---
   - hosts: localhost
     become: yes
     gather_facts: true
     vars:
         grub_password_v1_passwd: puffersoft
         grub_password_v2_passwd: grub.pbkdf2.sha512.10000.A4DE89CBFB84A34253A71D5DD4939BED709AB2F24E909062A902D4751E91E3E82403D9D216BD506091CAA5E92AB958FBEF4B4B4B7CB0352F8191D47A9C93239F.0B07DD3D5AD46BF0F640136D448F2CFB84A6E05B76974C51B031C8B31D6F9B556802A28E95A5E65EC1F95983E24618EE2E9B21A0233AAA8D264781FE57DCE837
         grub_user: cloud_user
     tasks:
    - stat: path=/sys/firmware/efi/efivars/
      register: grub_efi
    - debug: vars=grub_efi
      when: ansible_distribution == 'Redhat'
      tags: grub-password

    - name: "Installing Template on Redhat Systems"
      template:
            src: grub-redhat.j2
            dest: /etc/grub.d/01_users
            owner: root
            group: root
            mode: '0700'
            notify:
                    - grub2-mkconfig EFI
                    - grub2-mkconfig MBR
      when: ansible_distribution == 'Redhat'
      tags: grub-password

    - name: "Installing Template on Ubuntu Systems"
      template:
            src: grub-ubuntu.j2
            dest: /etc/grub.d/40_custom
            owner: root
            group: root
            mode: '0700'
            notify:
                    - grub2-mkconfig EFI
                    - grub2-mkconfig MBR
      when: ansible_distribution == 'Ubuntu'
      tags: grub-password

    - name: "Grub EFI | Add Password"
      lineinfile: dest=/etc/grub2-efi.cfg regexp = "^password_pbkdf2 {{ grub_user }}" state=present insertafter = EOF line= "password_pbkdf2 {{ grub_user }} {{ grub_password_v2_passwd }}"
      when: grub_efi.stat.exists == True
      tags: grub-password

    - name: "Grub v2 MBR | Add Password"
      lineinfile: dest=/etc/grub2.cfg regexp = "^password_pbkdf2 {{ grub_user }}" state=present insertafter = EOF line= "password_pbkdf2 {{ grub_user }} {{ grub_password_v2_passwd }}"
      when: grub_efi.stat.exists == False

    - name: "grub2-mkconfig EFI"
      command: grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
      when: grub_efi.stat.exists == True

    - name: "grub2-mkconfig MBR"
      command: grub2-mkconfig -o /boot/grub2/grub.cfg
      when: grub_efi.stat.exists == False

grub-redhat.j2

#!/bin/sh -e
cat << EOF
if [ -f \${prefix}/user.cfg ]; then
  source \${prefix}/user.cfg
  if [ -n "\${GRUB2_PASSWORD}" ]; then
    set superusers="root"
    export superusers
    password_pbkdf2 root \${GRUB2_PASSWORD}
  fi
fi
set supperusers="{{ grub_user  }}"
password_pbkdf2 {{ grub_user }} {{ grub_password_v2_passwd  }}
EOF

grub-ubuntu.j2

#!/bin/sh
tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
set superusers="{{grub_user}}"
password_pbkdf2 {{grub_user}} {{grub_password_v2_passwd}}

Ansible Distribution

[Red Hat 7.7 Maipo和Ubuntu 18.04仿生

Answer 1

grub-redhat.j2有一些错别字。

第11行：set supperusers="{{ grub_user }}"

更改为：set superusers="{{ grub_user }}"

第12行：password_pbkdf2 {{ grub_user }} {{ grub_password_v2_passwd }}

更改为：password_pbkdf2 {{ grub_user }} {{ grub_password_v2_passwd }}

[如果要在多台计算机上使用相同的grub密码，则可能要考虑使用ansible-vault encrypt_string加密原始密码，然后创建一个运行grub2-mkpasswd-pdkdf2的附加任务（grub2-tools的一部分） -minimal）和命令模块，并将其传递给Vaulted变量。注册该任务的输出（例如，作为grub_password_v2_passwd），即使基础密码相同，也会导致您运行剧本的每个目标都不会收到唯一的哈希值。