Siemens SIMATIC NET RUGGEDCOM APE1808, Configuration Manual

Configuring and Using the RUGGEDCOM APE1808
2.6 Setting the GRUB Bootloader Password

2.6

Setting the GRUB Bootloader Password

To set the GRUB bootloader password, do the following:

NOTICE

Use strong passwords. Avoid weak passwords such as 

password1

, 

123456789

,

abcdefgh

, etc.

1. Login or gain root access.
2. Create the GRUB bootloader password by typing:

grub-mkpasswd-pbkdf2

Type the new password when requested. GRUB displays a message similar to the

following:

PBKDF2 hash of your password is 

grub.pbkdf2.sha512.10000.380AD91E6C36BB4018B5CABDAFF5CABC52A16B6EFF503B6B 

B2E21199C006C526AEE3A2FF8C

F41F9A07AEFB1E8E2275ABB44C41B1429B9C5D509786E2B57A51DA.989F1E9FAC061899E1B 

B8CB38D2119B26E6CE79A5

CBB637E5A611AE099EBBF7CD9BCF1A3EC516CE0E4AD007B7DF8E679220BC845E07E440F134D 

ED2537081F54

Record the password for future use in the upcoming steps.

3. Using vim or nano, open the file /etc/grub.d/40_custom.
4. In the file /etc/grub.d/40_custom, add the following line:

set superusers="root"

5. Add the the following line:

password_pbkdf2 root KEY

Add the GRUB password created in 

Step 2

 to this line. For example:

password_pbkdf2 root 

grub.pbkdf2.sha512.10000.380AD91E6C36BB4018B5CABDAFF5CABC52A16B6EFF503B6B 

B2E21199C006C526AEE3A2FF8CF

41F9A07AEFB1E8E2275ABB44C41B1429B9C5D509786E2B57A51DA.989F1E9FAC061899E1B 

B8CB38D2119B26E6CE79A5CB

B637E5A611AE099EBBF7CD9BCF1A3EC516CE0E4AD007B7DF8E679220BC845E07E440F134D 

ED2537081F54

6. Save and close the file.
7. Apply the GRUB bootloader password by typing:

grub-mkconfig -o /boot/grub/grub.cfg

8. Using vim or nano, open the file 

/boot/grub/grub.cfg

 and verify the user-

name and password defined within are correct.

14

RUGGEDCOM APE1808

Configuration Manual, 11/2019, C79000-G8976-1415-03