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#!/bin/bash
setterm -powersave off
setterm -blank 0
if [ -r ./restore-image-lib.sh ]; then
. ./restore-image-lib.sh
elif [ -r /usr/lib/restore-image-lib.sh ]; then
. /usr/lib/restore-image-lib.sh
fi
export PATH="/sbin:/bin:/usr/sbin:/usr/bin"
restore_media="/tmp/media"
images_dir="$restore_media/images"
images="$images_dir/list"
images_config="$images_dir/config"
image=""
function read_config()
{
if [ -r "$images_config" ]; then
. $images_config
fi
}
function image_list()
{
list=$(cat $images | awk -F',' \
'{ print $1 " " $2 " " $4 }')
echo $list
}
function image_file()
{
country="$1"
file=$(grep ^$country $images | awk -F',' '{ print $3 }')
echo $file
}
function welcome()
{
while true; do
clear
msg="\n Welcome to $TITLE\n\
\nThe following images were found, select one:\n "
opcao=$(dialog --backtitle "$BACKTITLE" --title "$TITLE" \
--stdout --radiolist "$msg" 0 0 0 \
$(image_list))
if [ "$?" != "0" ]; then
_yesno "\nInterrupt installation?\n "
if [ "$?" = "0" ]; then
_shutdown
fi
else
if [ -z "$opcao" ]; then
continue
else
image=$(image_file $opcao)
break
fi
fi
done
# disable kernel messages in the console
echo "1 4 1 7" > /proc/sys/kernel/printk
}
function install_warning()
{
clear
_yesno "\nWARNING: This process will erase all data in this machine, \
do you want to continue?\n "
if [ "$?" != "0" ]; then
_shutdown
fi
}
function detect_root()
{
dev=$(sed '\|'$restore_media'|!d;s/[0-9] .*$//;s/^.*\///' /proc/mounts)
devices=$(grep "^ .*[^0-9]$" < /proc/partitions | grep -v ${dev} | awk '$3 > '$MIN_DISKSIZE' { print $4,$3 }')
devs_found=$(echo $devices | wc -w)
if [ "$devs_found" -gt "2" ]; then
if [ ! -z ${dev} ]; then
opcao=$(dialog --backtitle "$BACKTITLE" --title "$TITLE" --stdout --menu 'Choose one of the detected devices to restore to (check the blocks size column first):' 8 50 0 $devices )
if [ "$?" != "0" ]; then
_yesno "\nInterrupt installation?\n "
if [ "$?" = "0" ]; then
_shutdown
fi
else
root=$opcao
fi
echo "$root"
else
_msgbox "\nError writing image: disk device not detected.\n"
fi
fi
}
function write_image()
{
root=$(detect_root)
if [ -z ${root} ]; then
_msgbox "\nError writing image: disk device not detected.\n"
# so that netbooks using USB sticks as disks can retry (like Gdium)
welcome
fi
image=$(cat $images_dir/list | cut -d ',' -f 3)
extension=$(echo $image | cut -d '.' -f 3)
case $extension in
gz) uncomp=zcat ;;
bz2) uncomp=bzcat ;;
*) uncomp=cat ;;
esac
$uncomp $images_dir/$image | dd of=/dev/$root bs=4M > /tmp/backup.out 2>&1 &
sleep 3
pid=$(ps ax | grep 'dd of' | grep -v grep | awk '{ print $1 }')
total=1000
while [ true ]; do
ps | grep -q $pid
if [ $? -eq 0 ]; then
/bin/kill -SIGUSR1 $pid
unit=$(tail -n 1 /tmp/backup.out | \
cut -d'(' -f2 | cut -d')' -f1 |\
awk '{ print $2 }')
complete=$(tail -n 1 /tmp/backup.out | \
cut -d'(' -f2 | cut -d')' -f1 | \
awk '{ print $1 }' | cut -d'.' -f1)
if [ x"$unit" = x"GB" ]; then
complete=$((complete*1000))
fi
echo $((complete*100/total))
sleep 1
else
break
fi
done | dialog --backtitle "$BACKTITLE" --title "$TITLE" --gauge "\nWriting image..." 8 45
in=$(tail -n 3 /tmp/backup.out | grep 'in$' | cut -d' ' -f1)
out=$(tail -n 3 /tmp/backup.out | grep 'out$' | cut -d' ' -f1)
if [ x"$in" != x"$out" ]; then
_msgbox "\nError writing image!\n"
sleep 24h
fi
}
function expand_fs()
{
filesystem_type=$(dumpe2fs -h /dev/${root}1 2>/dev/null| grep "Filesystem OS type" | awk '{ print $4 }')
if [ $filesystem_type = "Linux" ]; then
dialog --backtitle "$BACKTITLE" --title "$TITLE" --infobox "Installing... Finishing Install..." 3 40
disk=/dev/$root
main_part=/dev/${root}1
swap_part=/dev/${root}2
main_part_sectors=
if [ -n "$SWAP_BLOCKS" ]; then
if [ -n "$EXPAND_FS" ]; then
total_blocks=$(sfdisk -s $disk)
main_part_blocks=$((total_blocks-SWAP_BLOCKS))
main_part_sectors=$((main_part_blocks*2))
else
main_part_sectors=$(sfdisk -d $disk | perl -lne 'm|^'$main_part'\b.*,\s*size\s*=\s*(\d+)\b| and print($1), exit')
fi
fi
if [ -n "$EXPAND_FS" ]; then
sfdisk -d $disk | sed -e "\|$main_part| s/size=.*,/size= $main_part_sectors,/" | sfdisk -f $disk
e2fsck -fy $main_part
resize2fs $main_part
fi
if [ -n "$SWAP_BLOCKS" ]; then
parted $disk -- mkpartfs primary linux-swap ${main_part_sectors}s -1s yes
mkswap -L swap $swap_part
fi
fi
}
# installation steps
welcome
read_config
install_warning
write_image
expand_fs
# all done!
_msgbox "\nInstallation process finished.\nPress ENTER to shutdown.\n "
_shutdown
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