Не могу разобраться с флешкой

#!/bin/sh
 
UPDATESDIR="/tmp/updater/updates/"
 
DEVICE="`mount | awk '/\/image/ {print $1}'`"
DEVICE=`readlink -f $DEVICE`
DEVICE=${DEVICE/\/safedev\/}
DEVICE=${DEVICE/\/dev\/}
DEVICE=${DEVICE//[1-9]/}
 
checks()
{
    if [ ! -f /image/forceupdate ]
    then
        egrep -q "(Geode|VIA Eden Processor 1000MHz)" /proc/cpuinfo || error_and_reboot "CPU is not AMD Geode or VIA Eden!"
    fi
}
 
error_and_reboot()
{
    echo -e "Error: $@"
    sync
    coldreboot
}
 
get_file()
{
    local file="$1"
    local check="$2"
    if [ "$check" = "dontcheck" ]
    then
        wget -nv $METHOD://$HOST/$UDIR/$file -O $file || error_and_reboot "Could not get file "$METHOD://$HOST/$UDIR/$file"."
    else
        wget -nv $METHOD://$HOST/$UDIR/$file.md5 -O $file.md5 || error_and_reboot "Could not get file "$METHOD://$HOST/$UDIR/$file.md5"."
        diff /image/$file.md5 $UPDATESDIR/$file.md5 >/dev/null 2>&1
        if [ "$?" -eq 0 ]
        then
            echo "Update not needed for file "$file""
            return
        else
            wget -nv $METHOD://$HOST/$UDIR/$file -O $file || error_and_reboot "Could not get file "$METHOD://$HOST/$UDIR/$file"."
            md5sum -c $file.md5 || error_and_reboot "MD5 sum of file "$file" not correct"
        fi
    fi
}
 
if [ -s /etc/thinner/updater ]
then
    mount -oremount,rw /image || error_and_reboot "Can't remount "/image" in rw mode."
    exec > /image/update.log 2>&1
    set -x
    e2label /dev/${DEVICE}1 thinner
    e2label /dev/${DEVICE}2 overlay
    checks
    for file in vmlinuz initrd altlinux
    do
        [ -f /image/$file.md5 ] || md5sum /image/$file > /image/$file.md5
    done
    . /etc/thinner/updater
    mkdir -p $UPDATESDIR
    cd $UPDATESDIR
    for o in `echo $OPTS | tr -s ,: \ `
    do
        case "$o" in
            rootfs)
            echo "Getting ROOTFS image..."
            get_file altlinux
            ;;
            initrd)
            echo "Getting INITRD image..."
            get_file initrd
            ;;
            vmlinuz)
            echo "Getting KERNEL image..."
            get_file vmlinuz
            ;;
            cleancfg)
            echo "Cleanning configuration directory..."
            CLEANCFG=yes
            ;;
        esac
    done
 
    get_file fdisk.rule dontcheck
    get_file lilo.conf dontcheck
 
    rm -f /image/{ram,bootsector}
 
    cp -f /sbin/lilo ./lilo
 
    if [ "$?" -ne 0 ]
    then
        get_file lilo dontcheck || error_and_reboot "Could not copy files to chroot."
        chmod +x ./lilo
    fi
 
    cp -f /bin/rm /bin/sync /usr/sbin/coldreboot .
    cp -f /tmp/updater*/downloader /image/
    cp -f {altlinux.md5,fdisk.rule,initrd,initrd.md5,lilo,lilo.conf,vmlinuz,vmlinuz.md5} /image/
    ./lilo -C /image/lilo.conf -b /dev/$DEVICE
    cp -f altlinux /image/altlinux.new
    ./sync; sleep 1; ./sync;
    mv -f /image/altlinux.new /image/altlinux
 
    [ -z "$CLEANCFG" ] || ./rm -rf /mnt/overlay/*
    ./sync
    ./coldreboot
else
    error_and_reboot "Configuration file is missing or empty."
fi