Annexe 9. Script de restauration▲
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#!/bin/sh
#
# Debian-secinst v0.1.6 : ANNEXE 9 - Script de restauration
# Simon Castro
#
# NDR : Beware of the command syntax, the script will be executed by ash.
#
#############
# VARIABLES #
#############
# The disk to use ...
DISK=`cat /backup/disk_name`
# Informations about the system this restore disk was created for
SERVER_INFOS="/backup/server_infos"
### Backuped configuration files used to restore the system
# The backuped partition table
BACKUPED="/backup/partitions_table"
# The backuped /etc/fstab file
FSTABED="/backup/fstab_file"
# The textfile with the fdisk script : fdisk /dev/xda < $FDISK_SCRIPT
FDISK_SCRIPT="/backup/fdisk_script"
# The backuped lilo configuration file to use to lilo the system.
LILO="/backup/lilo_file"
### Backuped system files
# Path to the file with the system archives information file (the cdrom is mounted on the /mnt mountpoint of the root filesystem)
ARCHIVES="/mnt/archives/infos.txt"
#####################
# DISPLAY FUNCTIONS #
#####################
display_menu()
{
/bin/cat <<EOF
Debian-Secinst v0.1.6 Restore script
Enter alt-[F1-F4] to : have this menu, have a shell, look at the logs.
To reboot : ctrl-alt-delSélectionnez
/bin/cat $SERVER_INFOS
Menu
(1) : Show actual partition table.
(2) : Show backuped partition table.
(3) : Show backuped fstab file.
*****
(4) : Write the backuped partition table to disk.
(5) : Format disk using backuped fstab file.
(6) : Mount disk partitions using backuped fstab file.
(7) : Restore the system.
(8) : Lilo the system using backuped lilo file.
(9) : Syncing and unmounting restored system.
*****
(A) : Automated script (4-5-6-7-8-9).
EOF
}
wait_user()
{
/usr/bin/test $AUTOMATED = 0 &&
{
echo "Press enter when you're done with this"
read waituser
}
}
clear_and_title()
{
/usr/bin/clear
echo "Debian-Secinst v0.1.6 Restore script"
echo
}
##########################
# NON CONSEQUENT ACTIONS #
##########################
show_actual()
{
clear_and_title
echo "Actual partition table is :"
/sbin/fdisk -lu $DISK
echo
wait_user
}
show_backuped()
{
clear_and_title
echo "Backuped partition table is ($BACKUPED) :"
echo
/bin/cat $BACKUPED
echo
wait_user
}
show_fstabed()
{
clear_and_title
echo "Backuped fstab file is ($FSTABED) :"
echo
/bin/cat $FSTABED
echo
wait_user
}
######################
# CONSEQUENT ACTIONS #
######################
write_backuped()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to write a new partitions table..."
echo "This will delete any data présent on the disk."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo
echo " I am deleting the actual partitions table..."
/bin/dd if=/dev/zero of=$DISK bs=512 count=1 > /dev/null
/bin/sync
echo " I'm creating the new partitions table..."
fdisk $DISK < $FDISK_SCRIPT > /dev/null
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
#
# NDR : The search command for labels on ext partitions is really bad...
# Couldn't find another way to get the label if fstab file contains /dev/xdaX with X > 9
#
format_disk()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to format the disk using the backuped fstab file..."
echo "This will delete any data présent on the disk."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo
echo "Formatting Swap partition(s) : "
for i in `/bin/grep swap $FSTABED | /usr/bin/tr '\t' ' ' | /usr/bin/cut -d ' ' -f 1`
do
echo " $i"
/sbin/mkswap $i > /dev/null
done
echo
echo "Formatting Ext2 partition(s) : "
for i in `/bin/grep ext2 $FSTABED | /usr/bin/cut -d ' ' -f 1`
do
LABEL=`/bin/grep "$i " $FSTABED | /usr/bin/cut -d ' ' -f 2`
echo " $i on $LABEL"
/sbin/mke2fs -L $LABEL $i > /dev/null
done
echo
/bin/sync
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
mount_partitions()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to mount the backuped's fstab file partition on the current disk..."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo "Mounting / partition on /target : "
echo
SLASH=`/bin/grep " / " $FSTABED | /usr/bin/cut -d ' ' -f 1`
MOUNTED=0
/bin/mount $SLASH /target && MOUNTED=1
/usr/bin/test $MOUNTED = 0 && {
echo
echo "FAILED ... Waiting for user action ..."
AUTOMATED=0
read useraction
}
/usr/bin/test $MOUNTED = 1 && {
echo " $SLASH / partition is now on /target..."
echo
for i in `/bin/grep ext2 $FSTABED | /bin/grep -v " / " | /usr/bin/cut -d ' ' -f 1`
do
LABEL=`/bin/grep "$i " $FSTABED | /usr/bin/cut -d ' ' -f 2`
echo -n " Creating /target$LABEL mountpoint ... "
/bin/mkdir "/target$LABEL"
echo "Mounting $i on /target$LABEL"
/bin/mount -t ext2 $i "/target$LABEL"
done
echo
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
}
restore_system()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to restore the system files on the current disk..."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo " Mounting cdrom on /mnt"
/bin/mount /dev/hdc /mnt -t iso9660 && MOUNTED=1
/usr/bin/test $MOUNTED = 0 && {
echo
echo "FAILED ... Waiting for user action ..."
AUTOMATED=0
read useraction
}
/usr/bin/test $MOUNTED = 1 && {
echo " Cdrom is now on /mnt..."
echo
echo "Going to /target"
cd /target
echo
echo "Restoring the system with .tar.gz archives : "
for archive in `cat $ARCHIVES | /bin/grep "tar.gz"`
do
echo " Restoring $archive..."
/bin/tar zxvfp $archive > /dev/null
done
/bin/sync
echo
echo "Restoring the system with .cpio archives : "
for archive in `cat $ARCHIVES | /bin/grep ".cpio"`
do
echo " Restoring $archive..."
/bin/cpio -id < $archive > /dev/null
done
/bin/sync
echo
echo "Unmounting cdrom..."
/bin/umount /dev/hdc
echo
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
}
lilo_system()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to lilo the current disk with the backuped lilo file..."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo "Lilo-ing current disk..."
/sbin/lilo -C $LILO
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
sync_system()
{
/usr/bin/test $AUTOMATED = 0 && clear_and_title
echo "You're about to sync the current disk and umount /target restored file system..."
echo -n "Are you sure you want to do that (N/y) ? "
/usr/bin/test $AUTOMATED = 0 && read userissure
/usr/bin/test $AUTOMATED = 1 || /usr/bin/test "$userissure" = "y" &&
{
echo
echo
echo "Syncing..."
/bin/sync
echo
echo "Umounting partitions : "
CPT=1
while /usr/bin/test $CPT -le `/bin/cat $FSTABED | /bin/grep -v " / " | /usr/bin/wc -l`
do
LABEL=`/usr/bin/tail -n $CPT $FSTABED | /usr/bin/head -n 1 | /usr/bin/cut -d ' ' -f 1`
echo " Unmounting $LABEL"
/bin/umount $LABEL
CPT=$(($CPT+1))
done
echo
echo "Unmounting '/' partition... "
/bin/umount /target
echo
echo " Done..."
echo
/usr/bin/test $AUTOMATED = 0 && wait_user
}
}
##################
# AUTOMATED CALL #
##################
automated()
{
AUTOMATED=1
clear_and_title
write_backuped
format_disk
mount_partitions
restore_system
lilo_system
sync_system
echo "Automated script done..."
echo
echo "You can now check the restored system with a shell or reboot the system..."
read waituser
AUTOMATED=0
}
########
# MAIN #
########
while [ 1 ]
do
/usr/bin/clear
AUTOMATED=0
display_menu
echo -n "What do you want ? "
read userinput
case $userinput in
1) show_actual ;;
2) show_backuped ;;
3) show_fstabed ;;
4) write_backuped ;;
5) format_disk ;;
6) mount_partitions ;;
7) restore_system ;;
8) lilo_system ;;
9) sync_system ;;
A) automated ;;
esac
/usr/bin/clear
done