I did not succeed however Knoppix is really cool. Would you mind taking a look at what I did

My hard disk is sda2.
Thanks
root@0[~]# mount /dev/sda2 /mnt/sda2
mount: /dev/sda2 already mounted or /mnt/sda2 busy
mount: according to mtab, /UNIONFS/dev/sda2 is already mounted on /mnt/sda2
root@0[~]# chroot /mnt/sda2 /bin/bash
chroot: cannot run command `/bin/bash': Exec format error
root@0[~]# chroot /mnt/sda2 /bin/bash passwd
chroot: cannot run command `/bin/bash': Exec format error
root@0[~]# passwd
Enter new UNIX password:
Retype new UNIX password:
Sorry, passwords do not match
passwd: Authentication information cannot be recovered
root@0[~]# mount /dev/hda1 /mnt/hda1
mount: /dev/hda1 already mounted or /mnt/hda1 busy
mount: according to mtab, /UNIONFS/dev/hda1 is already mounted on /mnt/hda1
root@0[~]# mount /dev/sda2 /mnt/sda2
mount: /dev/sda2 already mounted or /mnt/sda2 busy
mount: according to mtab, /UNIONFS/dev/sda2 is already mounted on /mnt/sda2
root@0[~]# chroot
chroot: too few arguments
Try `chroot --help' for more information.
root@0[~]# chroot /mnt/sda2 /bin/bash
chroot: cannot run command `/bin/bash': Exec format error
root@0[~]#