If you want to change boot option or you want to select different Kernel you have to press Esc in to Grub menu.. To display menu at the boot up time you have to press # to comment out ‘hiddenmenu'. Press Esc after it. You will see a list of OS and kernels that you can boot from your system. To change the boot option you have to press ‘e’. You will find root', 'kernel', 'initrd', 'quiet' and 'savedefault'. You can also modify these lines. You can press ‘b’ after doing desired modification in the operating systems. Below mention will allow you to set new password:
Code:
Append ' init=/bin/bash ' place it at end of the kernel line
<Enter>
Type ' mount -n -o remount,rw / '
<Enter>
' passwd '
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