mbrback shell script creates a backup of your hard drive’s MBR and its partition table. You can then use mbrback to restore the MBR boot code, full MBR, or partition table from the backup files.

 #!/bin/bash # Script Name: mbrback http://igurublog.wordpress.com/downloads/script-mbrback/ # Requires: util-linux # License: GNU GENERAL PUBLIC LICENSE Version 3 http://www.gnu.org/licenses/gpl-3.0.txt # do not change these variables! argsneeded=1 restoretype=”" back=”" devname=”" help () { echo ‘mbrback version 1.0.0′ echo ‘Creates MBR and partition table backups of DEVICE named:’ echo ‘ HOST-DEVICE-MBR-back’ echo ‘ HOST-DEVICE-partition-back.sf’ echo ‘Restores MBR and partition table from specified backup file’ echo ‘Usage: sudo mbrback DEVICE [BACKUPFOLDER]‘ echo ‘ (creates backup files of DEVICE)’ echo ‘Usage: sudo mbrback –restoreboot DEVICE [BACKUPFILE]‘ echo ‘ (restores MBR boot viagra and altitude sickness  code only)’ echo ‘Usage: sudo mbrback –restorefullmbr DEVICE [BACKUPFILE]‘ echo ‘ (restores entire MBR)’ echo ‘Usage: sudo mbrback –restorepart DEVICE [BACKUPFILE.sf]‘ echo ‘ (restores partition table)’ echo ‘Example: sudo mbrback sda’ echo ‘ (creates MBR and partition table backups of’ echo ‘ /dev/sda in current folder)’ echo ‘Example: cialis off brand  sudo mbrback /dev/sda’ echo ‘ (creates MBR and partition table backups of’ echo ‘ /dev/sda in current folder)’ echo ‘Example: sudo mbrback sda /mybackups’ echo ‘ (creates MBR and partition table backups of’ echo ‘ /dev/sda in /mybackups)’ echo ‘Example: sudo mbrback –restoreboot sda /mybackups/sys-sda-MBR-back’ echo ‘ (restores MBR boot code of /dev/sda using’ echo ‘ /mybackups/sys-sda-MBR-back)’ echo ‘Example: sudo mbrback –restorepart sda /mybackups/sys-sda-partition-back.sf’ echo ‘ (restores partition table of /dev/sda using sfdisk file ‘ echo ‘ /mybackups/sys-sda-partition-back.sf)’ echo echo “When restoring, mbrback will always tell you what it’s going to do” echo “and allow you to abort before it writes to disk.” echo echo “Instructions and updates:” echo “http://igurublog.wordpress.com/downloads/script-mbrback/” echo } index=0 while [ "$1" != "" ]; do if [ "${1:0:1}" = "-" ]; http://overthecounterviagracheap.com/  then case “$1″ in –help | -help ) help exit ;; –restoreboot ) if [ "$restoretype" = "" ]; then restoretype=”boot” else echo ‘mbrback: can only use one restore option’ exit 1 fi ;; –restorefullmbr ) if [ "$restoretype" = "" ]; then restoretype=”fullmbr” else echo ‘mbrback: can only use one restore option’ exit 1 fi ;; –restorepart ) if [ "$restoretype" = "" ]; then restoretype=”part” else echo ‘mbrback: can only use one restore option’ echo help exit 1 fi ;; * ) echo “mbrback: Unknown option $1″ echo help exit 1 ;; esac else let “index+=1″ case $index in 1 ) devname=`basename “$1″` how to get viagra  if [ ! -b "/dev/$devname" ]; then echo “mbrback: /dev/$devname is not a valid device” exit 1 fi ;; 2 ) back=”$1″ ;; * ) echo “mbrback: Too many arguments” exit 1 ;; esac fi shift done if (( index < $argsneeded )) || [ "$devname" = "" ]; then echo “mbrback: missing arguments” echo help exit 1 fi if [ `whoami` != "root" ]; then echo ‘mbrback: must be run with sudo’ exit 1 fi sysname=$HOSTNAME if [ "$restoretype" = "" ]; then # create MBR and table backups if [ "$back" = "" cialistadalafil-onlinerx.com  ]; then back=`pwd` else if [ ! -d "$back" ]; then echo “mbrback: $back is not a valid backup folder” exit 1 fi fi dd if=/dev/$devname of=”$back/$sysname-$devname-MBR-back” bs=512 count=1 sfdisk -d /dev/$devname > “$back/$sysname-$devname-partition-back.sf” else # restore if [ "$back" = "" ]; then echo “mbrback: you must specify a backup file” exit 1 elif [ ! -f "$back" ]; then echo “mbrback: file not found – $back” exit 1 fi if [ "$restoretype" = "boot" ] || [ "$restoretype" = "fullmbr" ]; then sfhead=`head –bytes=21 “$back”` if [ "$sfhead" = "# partition table of " ]; then echo “mbrback: $back is not an MBR backup file” exit 1 fi if [ "$(stat -c%s "$back")" != "512" ]; then echo “mbrback: $back is wrong size for an MBR backup file” exit 1 fi fi if [ "$restoretype" = "part" ]; then sfhead=`head –bytes=21 “$back”` if [ "$sfhead" != "# partition table of " ]; then echo “mbrback: $back not a valid sfdisk backup file” exit 1 fi echo echo “You are about to overwrite your /dev/$devname partition table with” echo “the contents of $back” echo echo “WARNING!!! Unless the partition table has been damaged or you” echo ” have accidentally deleted a partition, you should abort.” echo echo “WARNING!!! Restoring the partition table from an out-of-date backup” echo ” may render ALL the data on your drive unreadable.” echo echo “WARNING!!! Do not proceed if /dev/$devname is mounted.” echo elif [ "$restoretype" = "boot" ]; then echo echo “You are about to overwrite your /dev/$devname MBR boot code with” echo “the contents of $back” echo echo “WARNING: Restoring your MBR boot code from an out-of-date MBR backup” echo ” file may render your computer unbootable.” elif [ "$restoretype" = "fullmbr" ]; then echo echo “You are about to overwrite your ENTIRE /dev/$devname MBR with” echo “the contents of $back” echo echo “WARNING!!! The full MBR contains both boot code and the drive’s” echo ” partition table. Unless the partition table has been” echo ” damaged or you have accidentally deleted a partition” echo ” you should abort and restore boot code only with” echo ” –restoreboot instead.” echo echo “WARNING!!! Restoring your full MBR from an out-of-date MBR backup may” echo ” render your computer unbootable and ALL the data on your” echo ” drive unreadable.” echo echo “WARNING!!! Do not proceed if /dev/$devname is mounted.” fi echo echo “Do you want to proceed? (you must type yes to proceed)” read s1 if [ "$s1" != "yes" ]; then echo “mbrback: no changes made – aborted at user request” exit 2 fi if [ "$restoretype" = "part" ]; then sfdisk /dev/$devname < “$back” elif [ "$restoretype" = "boot" ]; then dd if=”$back” of=/dev/$devname bs=448 count=1 elif [ "$restoretype" = "fullmbr" ]; then dd if=”$back” of=/dev/$devname bs=512 count=1 fi echo “/dev/$devname was updated” fi exit 0

( source, released under GPL v3.0 )