mychroot

#!/bin/bash
# mychroot
[[ ${#1} > 0 ]] && [[ -e /dev/$1 ]] && [[ $UID = 0 ]] ||\
{ echo "Usage (as root)  - mychroot sdxy"; exit 1; }
mount /dev/$1 /mnt/
mps=(dev proc sys)
for i in ${mps[@]}; do
mount --bind /$i/ /mnt/$i/
done
chroot /mnt/