Australian Personal Computer 2003 July/CD 2 Debian 3.0r1/Debian.iso/isolinux/root.bin/root/sbin/update-modules

Text File | 2002-02-04 | 4.1 KB | 192 lines

#!/bin/sh
#
# This is the update-modules script for Debian GNU/Linux.
# Copyright 1998-2001 Wichert Akkerman <[e-mail]>
# Licensed under the GNU GPL, version 2
#

MODCONFFILE=/etc/modules.conf
MODCONFTMPFILE="${MODCONFFILE}.$$"
CHANDEVFILE=/etc/chandev.conf
CHANDEVTMPFILE="${CHANDEVFILE}.$$"

ARCHDIR=/etc/modutils/arch
HEADER="### This file is automatically generated by update-modules"

set -e

if [ "$1" = "force" ] ; then
    force=1
else
    force=
fi

# Reset the sorting order since we depend on it
LC_COLLATE=C
export LC_COLLATE

depdir()
{
    dep=`grep '[[:space:]]*depfile' "${MODCONFFILE}" | tail -n 1 | sed -e 's/depfile=//' -e 's,/[^/]*$,,'`
    if [ -z "$dep" ] ; then
        dep="/lib/modules/`uname -r`"
    fi

    echo $dep
}

arch() {
    local model=`uname -m`
    case $model in
        i[0-9]86) model=i386; ;;
        sun4u) model=sparc64; ;;
        arm*) model=arm; ;;
        ppc) model=powerpc; ;;
    esac
    echo $model
}

archmodel() {
    local arch=`arch`
    local model=""
    if [ $arch = "m68k" ]; then
        if [ -f /proc/hardware ]; then
            model=`sed -ne 's/^Model:[[:space:]]*//p' /proc/hardware`
            case $model in
                Atari*) model="atari"; ;;
                Amiga*) model="amiga"; ;;
                Macintosh*) model="mac"; ;;
                Motorola*) model="MVME"; ;;
                *) model="generic"; ;;
            esac
            model=".${model}"
        else
            echo "/proc/hardware does not exist, assuming general m68k system"
            model=".generic"
        fi
    elif [ $arch = "powerpc" ]; then
        if [ -f /proc/cpuinfo ]; then
            model=`sed -ne 's/^machine[[:space:]]*:[[:space:]]*//p' /proc/cpuinfo`
            case $model in
                Amiga*) model="apus"; ;;
                Power*) model="pmac"; ;;
                *) model="generic"; ;;
            esac
            model=".${model}"
        else
            echo "/proc/cpuinfo does not exist, assuming general powerpc system"
            model=".generic"
        fi
    fi
    echo "${arch}${model}"
}

checkoverwrite() {
    local cfgfile="$1"

    if [ -f "$cfgfile" ]; then
        if ! sed -ne 1p "$cfgfile" | grep -q "^$HEADER" ; then
            echo "Error: the current $cfgfile is not automatically generated." >&2
            if [ -z "$force" ]; then
                echo "Use \"update-modules force\" to force (re)generation."
                exit 1
            else
                echo "force specified, (re)generating file anyway."
            fi
        fi
    fi
}

createfile() {
    cat <<EOF > "$1"
$HEADER"
#
# Please do not edit this file directly. If you want to change or add
# anything please take a look at the files in /etc/modutils and read
# the manpage for update-modules.
#
EOF
}

addfile() {
    local src="$1"
    local tgt="$2"

    echo "### update-modules: start processing $src" >> "$tgt"
    if [ -x "$src" ]; then
        if !  "$src" >> "$tgt" ; then
            echo "Error while executing $src, aborting" >&2
            exit 1
        fi
    else
        cat "$src" >> "$tgt"
    fi
    cat <<EOF >> "$tgt"

### update-modules: end processing $cfg

EOF
}


if [ "`uname -m`" = "s390" ] ; then
    dochandev=1
fi

checkoverwrite "$MODCONFFILE"
[ "$dochandev" ] && checkoverwrite "$CHANDEVFILE"

if [ 0 -ne "`id -u`" ]; then
    echo "You have to be root to do this." >&2
    exit 2
fi

model=`archmodel`
oldmodel=$model

while [ ! -f "${ARCHDIR}/${model}" ]; do
    oldmodel=$model
    model=`echo $oldmodel | sed -e 's/\.[^.]\+//'`
    if [ "$model" = "$oldmodel" ]; then
        break
    fi
    echo "Configuration for $oldmodel not found, trying $model"
done

CONF="${ARCHDIR}/${model}"

if [ ! -f "$CONF" ]; then
    echo "Architecture-specific modutils configuration not found, using defaults"
    CONF="${ARCHDIR}/generic"
fi

[ -e "$MODCONFFILE" ] && cp -f "$MODCONFFILE" "${MODCONFFILE}.old"
[ "$dochandev" -a -e "$CHANDEVFILE" ] && cp -f "$CHANDEVFILE" "${CHANDEVFILE}.old"

createfile "$MODCONFTMPFILE"
[ "$dochandev" ] && createfile "$CHANDEVTMPFILE"

for cfg in /etc/modutils/* $CONF ; do
    if [ -f "$cfg" ]; then # this check is necesarry to skip /etc/modutils/archs
        if [ "$dochandev" ] && echo $cfg | grep -q '\.chandev$' ; then
            addfile "$cfg" "$CHANDEVTMPFILE"
        elif ! echo $cfg | grep -q '\(\.dpkg-[a-z]*\|~\)$' ; then
            addfile "$cfg" "$MODCONFTMPFILE"
        fi
    fi
done

mv "$MODCONFTMPFILE" "$MODCONFFILE"
[ "$dochandev" ] && mv "$CHANDEVTMPFILE" "$CHANDEVFILE"

# We also call depmod here to stop insmod from complaining that modules.conf
# is more recent then modules.dep
#
if [ -d "`depdir`" -a -f /proc/modules ]
then
    depmod -a || true
fi

exit 0