how to break grub password

[harsh4harshil]

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Hi

I forget my grub password. so that when i want to go into single user mode from the grub stage. but i can't so that i want to brak that password like root password. So that help to break that password, Please.


Thank you.

[devils casper]

Boot up from any LiveCD and mount / ( /boot, if you have one ). Open boot/grub/menu.lst ( or grub.conf ) file and put # sign before 'password --md5 <password-hash>' line.

#password --md5 <password-hash>

Save file and reboot machine. GRUB wont prompt for password.

[itechsoln]

- Login the system as a root user
- open the terminal and just type the command grub-md5-crypt
- After above command it will ask to enter the password, type the password twice.
- After reset the password it will give a MD5 HASH password which would look like this <$1$qGzS//$7hrAbB24WKdROVdYyUNVM0>
- now edit the grub file and add the password in grub file (Located at /boot/grub/grub.conf) like below mentioned.

password --md5 $1$qGzS//$7hrAbB24WKdROVdYyUNVM0

You are Done!