diff options
Diffstat (limited to 'rescue/tree/usr/sbin/restore-image.sh')
| -rwxr-xr-x | rescue/tree/usr/sbin/restore-image.sh | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/rescue/tree/usr/sbin/restore-image.sh b/rescue/tree/usr/sbin/restore-image.sh new file mode 100755 index 000000000..f4f904f3f --- /dev/null +++ b/rescue/tree/usr/sbin/restore-image.sh @@ -0,0 +1,412 @@ +#!/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 $opcao) + break + fi + fi + done + + # disable kernel messages in the console + echo "1 4 1 7" > /proc/sys/kernel/printk +} + +function install_warning() +{ + if [ -n "${win32_part_dev}" ]; then + warn_msg="Windows installation detected.\nWe will set it up as dual boot. \ +You may lose some data.\nPlease backup before proceeding." + else + warn_msg="WARNING: This process will erase all data in this machine, \ +do you want to continue?" + fi + + clear + _yesno "\n$warn_msg\n" + if [ "$?" != "0" ]; then + _shutdown + fi +} + +function detect_root() +{ + inst_source_dev=$(awk "\$2 == \"$restore_media\" { print \$1 }" /proc/mounts | sed -e 's/[0-9]$//') + inst_source_dev=${inst_source_dev#/dev/} + devices=$(grep "^ .*[^0-9]$" < /proc/partitions | grep -v ${inst_source_dev} | awk '$3 > '$MIN_DISKSIZE' { print $4,$3 }') + + if [ -z "${devices}" ]; then + exit 1 + fi + + devs_found=$(($(echo $devices | wc -w)/2)) + + root_data=$(detect_win32 ${inst_source_dev}) + + if [ -z "${root_data}" ]; then + if [ "$devs_found" -gt "1" ]; then + if [ -n "${inst_source_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 [ "$?" = "0" ]; then + _shutdown + fi + else + root_data=${opcao} + fi + fi + else + root_data=$(echo ${devices} | cut -d ' ' -f 1) + fi + fi + + echo ${root_data} +} + +function detect_win32() +{ + # from detect_root() + skip_dev=${1} + + # win32 detection won't handle complex layouts + if [ $(fdisk -l | grep "^/dev/" | grep -v ${skip_dev} | wc -l) -gt 1 ]; then + exit + fi + + # get the last created windows partition information + set -f + device=$(fdisk -l | grep "^/dev/" | grep -v ${skip_dev} | grep -e "FAT\|NTFS\|HPFS" | tail -1 | sed 's/ .*$//') + set +f + + if [ -z "${device}" ]; then + exit + fi + + # it might be needed, for safety + device_type=$(blkid -o value -s 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})) + + dev=${win32_part_dev#/dev/} + disk=${dev%[0-9]} + number=${dev#[a-w][a-w][a-w]} + let number++ + echo ${disk}${number} ${win32_part_dev} ${win32_part_type} ${win32_part_new_size} + fi +} + +function resize_win32() +{ + device=${1} + device_type=${2} + new_win32_size=${3} + + dialog --backtitle "$BACKTITLE" --title "$TITLE" --infobox "\nResizing Windows partition...\n" 4 55 + + dev=${device#/dev/} + disk=${dev%[0-9]} + win32_number=${dev#[a-w][a-w][a-w]} + + 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}*2)) &>/dev/null + + # we need some free sector here, rebuilding layout + fdisk /dev/${disk} &>/dev/null <<EOF +d +n +p +${win32_number} + ++${new_win32_size}K +t +${device_id} +a +${win32_number} +w +EOF + # adds linux partition to the end of the working disk + fdisk /dev/${disk} &>/dev/null <<EOF +n +p +$((${win32_number}+1)) + ++${MIN_DISKSIZE}K +t +$((${win32_number}+1)) +83 +w +EOF +} + +function detect_device() +{ + dialog --backtitle "$BACKTITLE" --title "$TITLE" --infobox "\nTrying to detect your root partition and disk...\n" 4 55 + + root_data=$(detect_root) + if [ -z "${root_data}" ]; then + _msgbox "\nError writing image: disk device not detected.\n" + # so that netbooks using USB sticks as disks can retry (like Gdium) + welcome + root_data=$(detect_root) + fi + set ${root_data} + root=$1 + win32_part_dev=$2 + win32_part_type=$3 + win32_part_new_size=$4 +} + +function write_image() +{ + if [ -n "${win32_part_dev}" ]; then + resize_win32 ${win32_part_dev} ${win32_part_type} ${win32_part_new_size} + fi + + image=$(cat $images_dir/list | cut -d ',' -f 3) + extension=${image/*./} + imagesize=$(ls -l $images_dir/$image | awk '{ print $5 }') + case $extension in + gz) + uncomp=zcat + total=$(gzip -l $images_dir/$image | tail -n 1 | awk '{ print $2 }') + ;; + bz2) + uncomp=bzcat + total=$((imagesize * 3)) + ;; + *) + uncomp=cat + total=$imagesize + ;; + esac + + skipstart=/bin/true + if [ -n "$win32_part_dev" ]; then + skipstart='dd of=/dev/null bs=1 count=32256' + fi + + # the actual dumping command, from image to disk + ${uncomp} ${images_dir}/${image} | (${skipstart} &>/dev/null; dd bs=4M of=/dev/${root} >/tmp/backup.out 2>&1>>/tmp/log) & + + sleep 3 + pid=$(ps ax | grep 'dd bs=4M of' | grep -v grep | awk '{ print $1 }') + + while [ true ]; do + ps | grep -q $pid + if [ $? -eq 0 ]; then + /bin/kill -SIGUSR1 $pid + complete=$(tail -n 1 /tmp/backup.out | awk '{ print $1 }') + 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"$out" ]; then + _msgbox "\nError writing image!\n" + sleep 24h + fi + + # Now re-read the partition table because 'dd' might have changed it + sfdisk -R /dev/${root} +} + +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 + if [ -n "$MAIN_PART_NUMBER" ]; then + part_number=$MAIN_PART_NUMBER + else + part_number=1 + fi + root=${root%[0-9]}$part_number + 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/${root} + + # FIXME: absurdly dirty hack + main_part_num=${root:3} + swap_part_num=$((main_part_num+1)) + swap_part=${disk}${swap_part_num} + + main_part_sectors= + if [ -n "$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 + e2fsck -fy $main_part + fdisk $disk << EOF +d +$main_part_num +n +p +$main_part_num + + +a +$main_part_num +w +EOF + sfdisk -R $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" + 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 +detect_device +install_warning +write_image +expand_fs + +# all done! +_msgbox "\nInstallation process finished.\nPress ENTER to shutdown.\n " + +_shutdown + |