Using Knoppix to remove the GRUB password option and blank the root password

Written by James McDonald

April 8, 2008

I went on three weeks holiday recently and when I got back I had forgotten what I had configured as the GRUB and root passwords on a CentOS 5.1 box.

I ended up using two FAQ’s that I stored for future reference. One I had written – https://toggen.com.au/faqs/mine/Remove_GRUB_password_and_reset_root_password.html and the other I had gleaned from the Linux Users Mailing list submitted by Kurt Wall – https://toggen.com.au/faqs/others/copyDataFromFC_LVM_to_Ubuntu/copyDataFromFC_LVM_to_Ubuntu.txt

Because the box I was locked out of was built using Logical Volumes (LVM) I had to mount the partitions using the copyDataFromFC_LVM_to_Ubuntu.txt how to.

Removing the GRUB password and resetting root password to blank was covered in Remove_GRUB_password_and_reset_root_password.html

I haven’t updated them to be current but if you have a reasonable understanding of Linux you should be able to use them as pointers.

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

You May Also Like…

Docker on Fedora 32

Docker on Fedora 32

Commands to run to get moby-engine running on Fedora 32 # as root or sudo'd dnf install grubby grubby...

PDF Poster

PDF Poster

Start with a wide long image. This is just a screen shot of my desktop. widescreen.png Convert it to postscript using...