Personal Computer World 2009 February/PCWFEB09.iso/Software/Linux/Kubuntu 8.10/kubuntu-8.10-desktop-i386.iso/casper/filesystem.squashfs/usr/share/migration-assistant/ma-script-utils

Text File | 2008-05-01 | 6KB | 208 lines

#!/bin/sh

. /usr/share/debconf/confmodule

error () {
    logger -t migration-assistant "error: $@"
}

log () {
    logger -t migration-assistant "info: $@"
}

ostype=""
set_os_type () {
# Rather than test for every distro possible in the shortname, we test
# the bootloader type for 'linux.'  This *should* be fine as we're only
# working with user's home directories.

    if [ ${1##*:} = "linux" ]; then
    ostype="linux"
    return 0
    fi

    case `LC_ALL=C expr match "$1" '.*:.*:\(.*\):.*'` in
    "Windows" )
    ostype="windowsxp"
        return 0
    ;;

        Windows[0-9] )
        ostype="windowsxp"
        return 0
        ;;

    "Windows9xMe" )
    ostype="windows9x"
        return 0
    ;;

    "MacOSX" )
    ostype="macosx"
        return 0
    ;;

    *)
    echo "Unknown ostype from $1" 1>&2
    return 1
    ;;
    esac
}
mountpoint="/mnt/migrationassistant"

unmount_os() {
    # If we didn't mount the device ourselves, don't unmount it.
    [ "$mountpoint" = "/mnt/migrationassistant" ] || return 0
    unmount_previously_run=
    device="$1"

    if [ -f /etc/mtab ]; then
        MTAB=/etc/mtab
    else
        MTAB=/proc/mounts
    fi

    while :; do
        failed=

    ISMOUNTED=
    if [ "$device" ]; then
        ISMOUNTED=$(grep "^$device " $MTAB) || ISMOUNTED=
    else
        ISMOUNTED=$(grep " $mountpoint " $MTAB) || ISMOUNTED=
    fi
        if [ -z "$ISMOUNTED" ]; then
            break
        fi
        HOME=$(grep " $mountpoint/home " $MTAB) || HOME=
        if [ "$HOME" ]; then
            umount "$mountpoint/home" || failed="$mountpoint/home"
        fi
        if [ -z "$failed" ]; then
            if [ -z "$device" ]; then
                umount $mountpoint || failed="$mountpoint"
            else
                umount $device || failed="$device"
            fi
        fi

        if [ -z "$failed" ]; then
            break
        fi
        # lets try waiting briefly once before we completely give up on
        # unmounting the partition and dump the problem on the user.
        if [ -z "$unmount_previously_run" ]; then
            unmount_previously_run=1
            sleep 15
            continue
        fi

        db_reset migration-assistant/failed-unmount
        db_subst migration-assistant/failed-unmount MOUNTED "$failed"
        db_input critical migration-assistant/failed-unmount || true
        db_go || exit 10
        db_get migration-assistant/failed-unmount
        [ "$RET" = true ] || exit 10
    done
}

mount_os () {
    ostype="$1"
    device="$2"


    if [ "$1" = "linux" ]; then
        mkdir -p $mountpoint
        unmount_os $device
        mount $device $mountpoint || error "Failed to mount $device"
        if [ -f "$mountpoint/etc/fstab" ]; then
            while read uuid mp rest; do
                if [ "$mp" != "/home" ]; then
                    continue
                fi

                if [ "${uuid%=*}" = "UUID" ]; then
                    devname="/dev/disk/by-uuid/${uuid#*=}"
                    uuid=$(readlink -e "$devname") || \
                        error "$devname does not exist."
                elif [ "${uuid%=*}" = "LABEL" ]; then
                    devname="/dev/disk/by-label/${uuid#*=}"
                    uuid=$(readlink -e "$devname") || \
                        error "$devname does not exist."
                    elif [ ! -e "$uuid" ]; then
                        # This happens when the IDE driver in the old OS
                        # doesn't match the driver in the installer.  The old
                        # /home might be mounted on /dev/hda3 which could now
                        # be /dev/sda3 or something entirely different.  Since
                        # there's no way to determine what the device is
                        # without the old kernel loaded, we fail gracefully so
                        # that we can continue to the next OS.
                        log "$uuid does not exist, continuing."
                        break
                    fi
                    failed=
                    mount $uuid "$mountpoint/home" || failed="1"
                        if [ "$failed" ]; then
                    unmount_os "$uuid"
                    mount $uuid "$mountpoint/home" || \
                        error "failed to mount $uuid"
                fi
                break
            done < "$mountpoint/etc/fstab"
        fi
    elif [ "$1" = "windowsxp" ]; then
        # Since we don't have to worry about separate partitions making up the
        # whole system in Windows (yet), we can allow already mounted
        # partitions.  This may fix some corner cases.  At any rate, it's
        # required for Wubi to function properly.
        mnt=$(grep "$device" /proc/mounts | head -n1 | cut -d " " -f 2)
        [ -z "$mnt" ] && [ -f /etc/mtab ] && mnt=$(grep "$device" /etc/mtab | head -n1 | cut -d " " -f 2)
        [ -n "$mnt" ] && mountpoint=$mnt && return 0

        mkdir -p $mountpoint
        unmount_os $device
        mount -t ntfs $device $mountpoint -o umask=0022,nls=utf8 3>&- || \
        ( log "Mounting $device to $mountpoint with NTFS failed."
        mount -t vfat $device $mountpoint -o umask=0022,utf8 || \
        log "Mounting $device to $mountpoint with VFAT failed." )
    fi

}

ROOT=/target
add_user() {
    local username
    local fullname
    local password

    username="$1"
    fullname="$2"
    password="$3"

    chroot=chroot

# Taken from user-setup/user-setup-apply

    # Add the user
    if [ -x $ROOT/usr/sbin/adduser ]; then
        $chroot $ROOT adduser --disabled-password --gecos \
        "$fullname" "$username" >/dev/null || true
    else
        $chroot $ROOT useradd -c "$fullname" -m "$username" >/dev/null || true
    fi

    # Set the password
    $chroot $ROOT chpasswd -m <<EOF
$username:$password
EOF

    # Add the user to groups
    if [ -n "$username" ]; then
        db_get passwd/user-default-groups
        for group in $RET; do
            log $chroot $ROOT adduser "$USER" $group >/dev/null 2>&1 || true
        done
    fi
}
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