diff options
Diffstat (limited to 'tmp/mkinitrd')
| -rw-r--r-- | tmp/mkinitrd | 603 |
1 files changed, 603 insertions, 0 deletions
diff --git a/tmp/mkinitrd b/tmp/mkinitrd new file mode 100644 index 0000000..d29a497 --- /dev/null +++ b/tmp/mkinitrd @@ -0,0 +1,603 @@ +#!/bin/bash + +# mkinitrd +# +# Written by Erik Troan <ewt@redhat.com> +# +# Contributors: +# Elliot Lee <sopwith@cuc.edu> +# Miguel de Icaza <miguel@nuclecu.unam.mx> +# Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de> +# Michael K. Johnson <johnsonm@redhat.com> +# Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr> +# Jakub Jelinek <jakub@redhat.com> +# Carlo Arenas Belon (carenas@chasqui.lared.net.pe> +# Keith Owens <kaos@ocs.com.au> +# Bernhard Rosenkraenzer <bero@redhat.com> +# Matt Wilson <msw@redhat.com> +# +# Patched for Mandrake by Guillaume Cottenceau <gc at mandrakesoft.com> +# + +PATH=/sbin:$PATH +export PATH + +VERSION=3.1.6-mdk + +compress=1 +target="" +kernel="" +force="" +verbose="" +MODULES="" +img_vers="" +modulefile=/etc/modules.conf +tmpdir= + +splash_script=/usr/share/bootsplash/scripts/ +splash=auto + +IMAGESIZE=100 +PRESCSIMODS="scsi_mod sd_mod unknown" +fstab="/etc/fstab" +IGNOREMODS="$IGNOREMODS ppa imm ide-scsi ext2 usb-storage" + +[[ -f /etc/sysconfig/installkernel ]] && source /etc/sysconfig/installkernel +[[ -n $SPLASH ]] && splash=$SPLASH + +usage () { + echo "usage: `basename $0` [--version] [-v] [-f] [--ifneeded] [--preload <module>]" >&2 + echo " [--omit-scsi-modules] [--omit-raid-modules] [--splash=[auto|resolution] [--with=<module>]" >&2 + echo " [--image-version] [--fstab=<fstab>] [--nocompress] [--tmpdir=<tmpdir>]" >&2 + echo " <initrd-image> <kernel-version>" >&2 + echo " (ex: `basename $0` /boot/initrd-$(uname -r).img $(uname -r))" >&2 + exit 1 +} + +findmodule() { + skiperrors="" + modName=$1 + if [ $(echo $modName | cut -b1) = "-" ]; then + skiperrors=1 + modName=$(echo $modName | cut -b2-) + fi + + if [ "$modName" = "i2o_block" ]; then + findmodule i2o_pci + findmodule i2o_core + modName="i2o_block" + fi + + if [ "$modName" = "pluto" ]; then + findmodule fc4 + findmodule soc + modName="pluto" + fi + + if [ "$modName" = "fcal" ]; then + findmodule fc4 + findmodule socal + modName="fcal" + fi + + if [ "$modName" = "xfs" ]; then + if [ -n "$skiperrors" ]; then + findmodule -pagebuf + else + findmodule pagebuf + fi + findmodule xfs_support + if [ -n "$skiperrors" ]; then + findmodule -xfs_dmapi + else + findmodule xfs_dmapi + fi + modName="xfs" + fi + + if [ "$modName" = "ext3" ]; then + if [ -n "$skiperrors" ]; then + findmodule -jbd + else + findmodule jbd + fi + modName="ext3" + fi + + for i in $IGNOREMODS; do + [ "$i" = "$modName" ] && return + done + + fmPath=`(cd /lib/modules/$kernel; find -type f -name $modName.o | grep -v build)` + + if [ -n "$fmPath" ]; then + # only need to add each module once + if echo $MODULES | grep $fmPath >/dev/null 2>&1 ; then : ; else + MODULES="$MODULES $fmPath" + fi + else + fmPath=`(cd /lib/modules/$kernel; find -type f -name $modName.o.gz | grep -v build)` + + if [ -n "$fmPath" ]; then + # only need to add each module once + if echo $MODULES | grep $fmPath >/dev/null 2>&1 ; then : ; else + zfmPath=`echo $fmPath | sed s/\.gz//` + MODULES="$MODULES $zfmPath" + fi + fi + fi + + if [ -z "$fmPath" ]; then + if [ -n "$skiperrors" ]; then + return + fi + + # ignore the absence of the scsi modules + for n in $PRESCSIMODS; do + if [ "$n" = "$modName" ]; then + return; + fi + done; + + echo "No module $modName found for kernel $kernel" >&2 + exit 1 + fi + +} + +is_good_fs() { + local parttype= tmpname= + local dir=$1 + [[ -d $dir ]] || return 1 + [[ -w $dir ]] || return 1 + [[ $dir == */ ]] && dir=${dir%/} + parttype=$(awk "{if (\$2 == \""$dir"\") print \$3 }" /proc/mounts) + + while tmpname=${dir%/*} && [[ -z $parttype ]];do + [[ -z $tmpname ]] && tmpname=/ + parttype=$(awk "{if (\$2 == \""$tmpname"\") print \$3 }" /proc/mounts) + dir=$tmpname + done + + case $parttype in + nfs|tmpfs) return 1;; + *) return 0; + esac + +} + +inst() { + if [ "$#" != "2" ];then + echo "usage: inst <file> <destination>" + return + fi + [ -n "$verbose" ] && echo "$1 -> $2" + cp $1 $2 +} + +is_ix86() { + if [ -n "`uname -m | grep i.86`" ]; then return 0; fi + return 1 +} + +is_ppc() { + if [ -n "`uname -m | grep ppc`" ]; then return 0; fi + return 1 +} + +while [ $# -gt 0 ]; do + case $1 in + --fstab*) + if echo $1 | grep '=' >/dev/null ; then + fstab=`echo $1 | sed 's/^--fstab=//'` + else + fstab=$2 + shift + fi + ;; + + --tmpdir*) + if echo $1 | grep '=' >/dev/null ; then + tmpdir=`echo $1 | sed 's/^--tmpdir=//'` + else + tmpdir=$2 + shift + fi + ;; + --with*) + if echo $1 | grep '=' >/dev/null ; then + modname=`echo $1 | sed 's/^--with=//'` + else + modname=$2 + shift + fi + + basicmodules="$basicmodules $modname" + ;; + + --version) + echo "mkinitrd: version $VERSION" + exit 0 + ;; + + -v) + verbose=-v + ;; + + --nocompress) + compress="" + ;; + + --ifneeded) + ifneeded=1 + ;; + + -f) + force=1 + ;; + --preload) + if echo $1 | grep '=' >/dev/null ; then + modname=`echo $1 | sed 's/^--preload=//'` + else + modname=$2 + shift + fi + PREMODS="$PREMODS $modname" + ;; + --omit-scsi-modules) + PRESCSIMODS="" + noscsi=1; + ;; + --omit-raid-modules) + noraid=1; + ;; + --image-version) + img_vers=yes + ;; + --splash) + if echo $1 | grep '=' >/dev/null ; then + splash=`echo $1 | sed 's/^--splash=//'` + else + splash=$2 + shift + fi + [[ $splash == no ]] && splash= + ;; + *) + if [ -z "$target" ]; then + target=$1 + elif [ -z "$kernel" ]; then + kernel=$1 + else + usage + fi + ;; + esac + + shift +done + +if [[ $splash == auto && -f $splash_script/detect-resolution ]];then + splash=$( $splash_script/detect-resolution ) +fi + +if [ -z "$target" -o -z "$kernel" ]; then + usage +fi + +if [ -n "$img_vers" ]; then + target="$target-$kernel" +fi + +if [ -z "$force" -a -f $target ]; then + echo "$target already exists." >&2 + exit 1 +fi + +if [ ! -d /lib/modules/$kernel ]; then + echo "/lib/modules/$kernel is not a directory." >&2 + exit 1 +fi + +for n in $PREMODS; do + findmodule $n +done + +if [ -z "$noscsi" ]; then + if [ ! -f $modulefile ]; then + modulefile=/etc/conf.modules + fi + + if [ -f $modulefile ]; then + scsimodules=`grep -E "alias[ ]+scsi_hostadapter" $modulefile | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }'` + # support probeall form as found with Mandrake 8.1 and superior + scsimodules="$scsimodules `sed -n 's/^ *probeall *scsi_hostadapter//p' $modulefile`" + + if [ -n "$scsimodules" ]; then + SAVEMODULES=$MODULES + + for n in $PRESCSIMODS; do + findmodule $n + done + + SAVEMODULESCMP=$MODULES + + for n in $(for m in $scsimodules; do echo $m; done | awk 'a[$1]=="" {print;a[$1]=1}'); do + # for now allow scsi modules to come from anywhere. There are some + # RAID controllers with drivers in block/ + findmodule $n + done + + [ "$SAVEMODULESCMP" = "$MODULES" ] && MODULES=$SAVEMODULES + fi + fi +fi + +# If we have ide devices and module ide, do the right thing +ide=/proc/ide/ide* +if [ -n "$ide" ]; then + findmodule -ide-mod + findmodule -ide-probe-mod + findmodule -ide-disk +fi + +if [ -z "$noraid" ]; then + # load appropriate raid devices if necessary, this means that the + # /etc/raidtab *must* be up to date for raided root to work. + #if grep '^/dev/md' $fstab | grep -v noauto >/dev/null 2>&1 ; then + for number in $(grep '^[ ]*raid-level' /etc/raidtab 2>/dev/null | + awk '{print $2}' | LC_ALL=C sort -u) ; do + case $number in + [014]) + findmodule raid$number + startraid=1 + ;; + 5) + findmodule -xor + findmodule raid$number + startraid=1 + ;; + *) + echo "raid level $number (in /etc/raidtab) not recognized" >&2 + ;; + esac + done + #fi +fi + + +# check to see if we need to set up a loopback filesystem +fullloopfile=$(awk '$2 == "/" && $4 ~ "loop" { print $1 }' /etc/fstab) +if [ -n "$fullloopfile" ]; then + dir=$fullloopfile + while [ -n "$dir" -a -z "$line" ]; do + dir=$(dirname $dir) + line=$(awk -v dir=$dir '$2 == dir { print $0 }' /etc/fstab) + done + if [ -z "$line" -o "$dir" = "/" ]; then + echo "bad fstab, loopback file doesn't belong to any device" + exit 1 + fi + loopDev=$(echo $line | awk '{ print $1 }') + loopFs=$(echo $line | awk '{print $3 }') + loopFile=$(echo $fullloopfile | sed "s|$dir||") + + basicmodules="$basicmodules -loop" + if [ "$loopFs" = "vfat" -o "$loopFs" = "msdos" ]; then + basicmodules="$basicmodules -fat" + fi + basicmodules="$basicmodules -${loopFs}" + +fi + +rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' $fstab) +rootfsopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/" && $6) { print $4; }}' $fstab | sed "s|defaults||;s|auto||;s|loop||;s|,,|,|;s|,$||;s|^,||") + +# in case the root filesystem is modular +findmodule -${rootfs} + +if [ "$rootfs" = "ext3" ] && echo $kernel | grep -q "^2\.2"; then + echo "Mandrake 2.2 kernels don't have ext3 compiled in, falling back to ext2 for you." + rootfs=ext2 +fi + +for n in $basicmodules; do + findmodule $n +done + +[[ -d $splash_script ]] || splash= +if [ "$rootfs" != "ext3" -a -z "$rootfsopts" -a -n "$ifneeded" -a -z "$MODULES" -a -z "$splash" ]; then + if [ -n "$verbose" ]; then + echo "Rootfs is not ext3, there is no rootfs special options, and" + echo "no modules are needed -- not building initrd image." + fi + exit 0 +fi + +if [ -n "$verbose" ]; then + echo "Using modules: $MODULES" +fi + +[[ -n $tmpdir ]] && { is_good_fs $tmpdir || tmpdir= ;} #command-line +[[ -z $tmpdir && -n $TMPDIR ]] && { is_good_fs $TMPDIR || tmpdir= && tmpdir=$TMPDIR ;} #environement +if [[ -z $tmpdir ]];then + if is_good_fs /tmp;then + tmpdir=/tmp + elif is_good_fs /var/tmp;then + tmpdir=/var/tmp + elif is_good_fs /root/tmp;then + tmpdir=/root/tmp + else + echo "Cannot use a tmp directory" >&2 + exit 1 + fi +fi +[[ -n $verbose ]] && echo "Using $tmpdir as temporary directory." + +MNTIMAGE=`mktemp -d ${tmpdir}/initrd.XXXXXX` +IMAGE=`mktemp ${tmpdir}/initrd.img.XXXXXX` +MNTPOINT=`mktemp -d ${tmpdir}/initrd.mnt.XXXXXX` +RCFILE=$MNTIMAGE/linuxrc +# cleanup on exit, hangup, interrupt, quit, termination +trap 'rm -rf $MNTIMAGE $MNTPOINT $IMAGE' 0 1 2 3 15 + +if [ -z "$MNTIMAGE" -o -z "$IMAGE" -o -z "$MNTPOINT" ]; then + echo "Error creating temporaries. Try again" >&2 + exit 1 +fi + +mkdir -p $MNTIMAGE +mkdir -p $MNTIMAGE/lib +mkdir -p $MNTIMAGE/bin +mkdir -p $MNTIMAGE/etc +mkdir -p $MNTIMAGE/dev +mkdir -p $MNTIMAGE/loopfs +mkdir -p $MNTIMAGE/proc +mkdir -p $MNTIMAGE/sysroot +ln -s bin $MNTIMAGE/sbin +# devfs will shadow some of my dev entries, I'll put them here +mkdir -p $MNTIMAGE/safedev + +# We don't need this directory, so let's save space +rm -rf $MNTPOINT/lost+found + +inst /sbin/nash "$MNTIMAGE/bin/nash" +if is_ix86; then + inst /sbin/insmod-DIET "$MNTIMAGE/bin/insmod" +else + inst /sbin/insmod.static "$MNTIMAGE/bin/insmod" +fi +ln -s ../bin/nash $MNTIMAGE/sbin/modprobe + +for MODULE in $MODULES; do + f="/lib/modules/$kernel/$MODULE" + if [ -e $f ]; then + cp $verbose -a $f $MNTIMAGE/lib + else + gunzip -c $f.gz > $MNTIMAGE/lib/`basename $MODULE` + fi +done + +# mknod'ing the devices instead of copying them works both with and +# without devfs... +mknod $MNTIMAGE/dev/console c 5 1 +mknod $MNTIMAGE/dev/null c 1 3 +mknod $MNTIMAGE/dev/ram b 1 1 +mknod $MNTIMAGE/dev/systty c 4 0 +for i in 1 2 3 4; do + mknod $MNTIMAGE/dev/tty$i c 4 $i +done + +echo "#!/bin/nash" > $RCFILE +echo "" >> $RCFILE + +for MODULE in $MODULES; do + module=`echo $MODULE | sed "s|.*/||" | sed "s/.o$//"` + + options=`sed -n -e "s/^options[ ][ ]*$module[ ][ ]*//p" $modulefile 2>/dev/null` + + if [ -n "$verbose" ]; then + echo "Loading module $module with options $options" + fi + echo "echo \"Loading $module module\"" >> $RCFILE + echo "insmod /lib/$module.o $options" >> $RCFILE +done + +echo "echo Mounting /proc filesystem" >> $RCFILE +echo "mount -t proc /proc /proc" >> $RCFILE + +if [ -n "$loopDev" ]; then + [ -d /initrd ] || mkdir /initrd + + # our dear friend devfsd will create links for us if devfs in use + cp -aL $loopDev $MNTIMAGE/safedev + cp -aL /dev/loop7 $MNTIMAGE/safedev + + loopDev=`echo $loopDev | sed "s|/dev/|/safedev/|"` + + echo "echo Mounting device containing loopback root filesystem" >> $RCFILE + echo "mount -t $loopFs $loopDev /loopfs" >> $RCFILE + echo "echo Setting up loopback device on $loopFile" >> $RCFILE + echo "losetup /safedev/loop7 /loopfs$loopFile" >> $RCFILE + rootdev=/safedev/loop7 +else + echo "echo Creating root device" >> $RCFILE + echo "mkrootdev /dev/root" >> $RCFILE + rootdev=/dev/root +fi + +if [ -n "$startraid" ]; then + cp -aL /dev/md0 $MNTIMAGE/safedev + echo "raidautorun /safedev/md0" >> $RCFILE +fi + +if echo $kernel | grep -q "^2\.2"; then +if is_ppc; then +[ -n "$loopDev" ] && echo "echo 0x07070000 > /proc/sys/kernel/real-root-dev" >> $RCFILE +else +[ -n "$loopDev" ] && echo "echo 0x0707 > /proc/sys/kernel/real-root-dev" >> $RCFILE +fi +echo "umount /proc" >> $RCFILE + +else +# Linux-2.4 +if [[ -n "$splash" ]];then + if [[ $LOGO_CONSOLE != yes ]] && [[ $LOGO_CONSOLE != YES ]] && [[ $LOGO_CONSOLE != Yes ]]; then + echo "echo disabling logo" >> $RCFILE + echo "echo 0 > /proc/splash" >> $RCFILE + fi +fi + +echo "echo 0x0100 > /proc/sys/kernel/real-root-dev" >> $RCFILE +echo "umount /proc" >> $RCFILE + +[ -n "$rootfsopts" ] && rootfsopts_msg="with flags $rootfsopts" +echo "echo Mounting root filesystem $rootfsopts_msg" >> $RCFILE +echo "mount --ro -t $rootfs $rootdev /sysroot $rootfsopts" >> $RCFILE +echo "pivot_root /sysroot /sysroot/initrd" >> $RCFILE +echo "echo Remounting devfs at correct place if necessary" >> $RCFILE +echo "handledevfs" >> $RCFILE +fi + +chmod +x $RCFILE + + +for i in `ls -sk $MNTIMAGE/*/* | sed 's/ [^ ]*$//'`; do + IMAGESIZE=$[IMAGESIZE + $i] +done +NB_INODES=20 +for i in `find $MNTIMAGE`; do NB_INODES=$[NB_INODES + 1]; done +IMAGESIZE=$[IMAGESIZE + NBFILES / 10] # 10 inodes needs 1k + +dd if=/dev/zero of=$IMAGE bs=1k count=$IMAGESIZE 2> /dev/null + +if [ -n "$verbose" ]; then + echo "Contents of RCFILE:" + cat $RCFILE 2> /dev/null + echo "Creating filesystem with size ${IMAGESIZE}KB and $NB_INODES inodes" +fi +mke2fs -q -m 0 -F -N $NB_INODES -s 1 $IMAGE + +mkdir -p $MNTPOINT +mount -t ext2 $IMAGE $MNTPOINT -o loop || { + echo "Can't get a loopback device" + exit 1 +} + +# We don't need this directory, so let's save space +rm -rf $MNTPOINT/lost+found + + +(cd $MNTIMAGE; tar cf - .) | (cd $MNTPOINT; tar xf -) + +umount $MNTPOINT + +if [ -n "$compress" ]; then + gzip -9 < $IMAGE > $target +else + cp -a $IMAGE $target +fi + +if [[ -n "$splash" && -f "$splash_script/make-boot-splash" ]];then + $splash_script/make-boot-splash $target $splash +fi |