# From https://www.turnkeylinux.org/docs/chroot-to-repair-system

mount /dev/xvdf2 /rescue

mount -t proc proc /rescue/proc
mount -t sysfs sys /rescue/sys
mount -o bind /dev /rescue/dev
mount -t devpts pts /rescue/dev/pts

chroot /rescue
# do whatever
exit

umount /rescue/dev/pts
umount /rescue/dev
umount /rescue/sys
umount /rescue/proc
umount /rescue