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2025-01-26 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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This article will explain in detail how to set the grub password for CentOS6.6. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.
There are three ways to set the grub password:
First, set the plaintext password
Edit grub profile
# vi / etc/grub.conf
After opening it, type on the next line of hiddenmenu
Password=123456
Save and exit, enter the boot page after reboot, press enter key to enter the system startup menu, press p to enter the 123456 password to modify and edit the kernel
2. Set md5 encryption password
The following two commands can encrypt the md5 password
Grub-md5-crypt
Grub-crypt-md5
Use the command to set the md5 encryption password and copy the generated MD5 code
[root@localhost~] # grub-crypt-- md5Password: Retype password: $1$ Vk/Pvw4.$i8b0feQIqez/CRInfnhcq0
Edit grub profile
# vi / etc/grub.conf
After opening it, enter it on the next line of hiddenmenu and paste the generated MD5 code
Password-- md5 $1$ Vk/Pvw4.$i8b0feQIqez/CRInfnhcq0
Save and exit, enter the boot page after reboot, press enter key to enter the system startup menu, press p to enter the password to modify and edit the kernel
3. Set sha encryption password
Grub-crypt-- sha-256 set sha password encryption command
[root@localhost~] # grub-crypt-- sha-256Password: Retype password: $5$ SoMwCWaMsEvM.GNV$skt6aRLI.P4oWgsvn/kQzeWnmRNMPqUTBxL./IGfOV1
Copy the generated sa code
Edit grub profile
# vi / etc/grub.conf
After opening it, enter it on the next line of hiddenmenu and paste the generated sa code.
Password-- encrypted $5$ SoMwCWaMsEvM.GNV$skt6aRLI.P4oWgsvn/kQzeWnmRNMPqUTBxL./IGfOV1
Save and exit, enter the boot page after reboot, press enter key to enter the system startup menu, press p to enter the password to modify and edit the kernel
All the above three methods can be used for grub encryption, and they have been tested successfully.
This is the end of the article on "how to set the grub password in CentOS6.6". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.
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