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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"
mnt_dir="/tmp/mnt"
restore_media="/tmp/media"
images_dir="$restore_media/images"
images="$images_dir/list"
images_config="$images_dir/config"
image=""
win32_part_dev=
win32_part_type=
win32_part_new_size=
function read_config()
{
if [ -r "$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,$3 }')
if [ -z "${devices}" ]; then
exit 1
fi
devs_found=$(echo $devices | wc -w)
# we might use it later again
fdisk -l | grep "^/dev/" | grep -v ${dev} > /tmp/fdisk.log
first_disk=$(echo ${devices} | cut -d ' ' -f 1)
if ! grep -qe "FAT\|NTFS\|HPFS" /tmp/fdisk.log; then
rm -rf /tmp/fdisk.log
if [ "$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
fi
else
root=$first_disk
fi
else
root=$(detect_and_resize_win32 $first_disk)
fi
echo "${root}"
}
function detect_and_resize_win32()
{
# from detect_root()
disk=${1}
# won't handle complex layouts
if [ ! $(grep "^/dev" /tmp/fdisk.log | wc -l) -gt 1 ]; then
set -f
# get the last created windows partition information
partition=$(grep -e "FAT\|NTFS\|HPFS" /tmp/fdisk.log | tail -1)
device=$(echo ${partition} | sed 's/ .*$//')
set +f
# it might be needed, for safety
device_type=$(vol_id --type ${device})
modprobe ${device_type}
# df for that partition
mount ${device} /mnt
size=$(df ${device} | tail -1)
umount /mnt
# its diskspace
used=$(echo ${size} | awk '{ print $3 }')
left=$(echo ${size} | awk '{ print $4 }')
avail=$((${left}/2))
if [ ! ${avail} -lt ${MIN_DISKSIZE} ]; then
win32_part_dev=${device}
win32_part_type=${device_type}
# our install takes half of 'left'
win32_part_new_size=$(($((${used}+${avail}))*2))
resize_win32 ${win32_part_dev} ${win32_part_type} ${win32_part_new_size}
else
rm -f /tmp/fdisk.log
fi
else
rm -f /tmp/fdisk.log
fi
echo "${disk}${number}"
}
function resize_win32()
{
device=${1}
device_type=${2}
new_win32_size=${3}
disk=${device%[0-9]}
# get the next partition integer
number=$(echo ${device} | sed 's@/dev/...@@g')
let number++
case ${device_type} in
vfat) device_id=b ;;
ntfs) device_id=7 ;;
hpfs) device_id=87 ;;
esac
# wrapper around libdrakx by blino
diskdrake-resize ${device} ${device_type} ${new_win32_size} &>/dev/null
# we need some free sector here, rebuilding layout
fdisk /dev/${disk} &>/dev/null <<EOF
d
n
p
$((${number}-1))
+$((${used}+${avail}))K
t
${device_id}
a
$((${number}-1))
w
EOF
# adds linux partition to the end of the working disk
fdisk /dev/${disk} &>/dev/null <<EOF
n
p
${number}
+${MIN_DISKSIZE}K
t
${number}
83
w
EOF
}
function write_image()
{
dialog --backtitle "$BACKTITLE" --title "$TITLE" --infobox "\nTrying to detect your root partition and disk...\n" 4 55
root=$(detect_root)
if [ -z ${root} ]; then
_msgbox "\nError writing image: disk device not detected.\n"
# so that netbooks using USB sticks as disks can retry (like Gdium)
welcome
root=$(detect_root)
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
if [ -s /tmp/fdisk.log ]; then
skipstart='dd of=/dev/null bs=1 count=32256 &>/dev/null;'
fi
# the actual dumping command, from image to disk
${uncomp} ${images_dir}/${image} | (${skipstart} dd bs=4M of=/dev/${root} >/tmp/backup.out 2>&1>>/tmp/log) &
sleep 3
pid=$(ps ax | grep 'dd bs=4M 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"$out" ]; then
_msgbox "\nError writing image!\n"
sleep 24h
fi
}
function grub_setup()
{
root=${1}
grub_dir=${2}
# install the bootloader
grub <<EOF
device (hd0) /dev/${root%[0-9]}
root (hd0,1)
setup (hd0)
quit
EOF
# change the partition order and boot timeout accordingly
sed -i 's/(hd0,0)/(hd0,1)/g;/^timeout/s/$/0/' ${grub_dir}/menu.lst
# dualboot configuration for grub
cat >> ${grub_dir}/menu.lst <<EOF
title Microsoft Windows
root (hd0,0)
makeactive
rootnoverify(hd0,0)
chainloader +1
EOF
}
function expand_fs()
{
if [ -z "$win32_part_dev" ]; then
root=${root%[0-9]}1
fi
filesystem_type=$(dumpe2fs -h /dev/${root} 2>/dev/null| grep "Filesystem OS type" | awk '{ print $4 }')
if [ "${filesystem_type}" = "Linux" ]; then
dialog --backtitle "$BACKTITLE" --title "$TITLE" --infobox "Finishing Install... Expanding ${root}" 3 40
disk=/dev/${root%[0-9]}
main_part=/dev/${root}
# FIXME: absurdly dirty hack
num=${root##sda}
let num++
swap_part=/dev/${root%[0-9]}${num}
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($1), exit')
fi
fi
if [ -n "$SWAP_BLOCKS" ]; then
parted $disk -- mkpartfs primary linux-swap ${main_part_sectors}s -1s yes
mkswap -L swap $swap_part
fi
if [ -n "$EXPAND_FS" ]; then
sfdisk -d $disk | sed -e "\|$main_part| s/size=.*,/size= ,/" | sfdisk -f $disk
e2fsck -fy $main_part
resize2fs $main_part
fi
mkdir -p $mnt_dir
mount $main_part $mnt_dir
grub_dir="$mnt_dir/boot/grub"
if [ -d "$grub_dir" ]; then
echo "(hd0) $disk" > "$grub_dir/device.map"
if [ -n "$win32_part_dev" ]; then
grub_setup ${root} ${grub_dir}
fi
fi
if [ -n "$MKINITRD" ]; then
mount -t sysfs none "$mnt_dir/sys"
mount -t proc none "$mnt_dir/proc"
echo > /proc/sys/kernel/modprobe # rescue's modprobe does not handle modprobe -q and aliases
chroot $mnt_dir bootloader-config --action rebuild-initrds
umount "$mnt_dir/sys"
umount "$mnt_dir/proc"
fi
umount $mnt_dir
fi
}
# installation steps
welcome
read_config
install_warning
write_image
expand_fs
# all done!
_msgbox "\nInstallation process finished.\nPress ENTER to shutdown.\n "
_shutdown
|