root@ttyS0:~# mount -o exec,barrier=0 /dev/sda
root@ttyS0:~# cd /media/sda
root@ttyS0:/media/sda# mount -t proc proc proc/
root@ttyS0:/media/sda# mount -t sysfs sys sys/
root@ttyS0:/media/sda# mount -o bind /dev dev/
root@ttyS0:/media/sda# mount -t devpts pts dev/pts/
root@ttyS0:/media/sda# chroot /media/sda /bin/bash
chroot: failed to run command '/bin/bash': No such file or directory