Answer Posted / mrigendra singh

firstly reboot the system then when so grub loader screen
then select linux option by pressing up and down aero key.
then press e for edit,this line display three linse select
kernel option line i.e.
kernel /vmlinuz-2.6---------
then press once again (e),it will display grub edit promt
i.e grub edit>kernel/vmlinuz -------
at last above line give one space and then write 1 then
press enter and then press (b) to boot the os. Then
It will display single user shell prompt i.e
sh-3.2#passwd(written)
then provide new password.
then reboot

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