path: root/scripts/mk-images

#!/bin/bash
#
# mk-images
#
# Copyright (C) 2007  Red Hat, Inc.  All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

LANG=C

PATH=$PATH:/sbin:/usr/sbin
IMAGEUUID=$(date +%Y%m%d%H%M).$(uname -i)
TMPDIR=${TMPDIR:-/tmp}

usage () {
	echo "usage: mk-images <pkgsrc> <toplevel> <template> <imgdir> <buildarch> <productname> <version> [<productpath>]"
    exit 0
}

NEEDGR=yes
DEBUG=""
BUILDARCH=`uname -m`
BOOTISO="boot.iso"

while [ $# -gt 0 ]; do
    case $1 in
	--nogr)
	    NEEDGR=""
	    shift
	    ;;
	--debug)
	    DEBUG="--debug"
	    shift
	    ;;
       --noiso)
           BOOTISO=""
           shift
           ;;

	--arch)
	    BUILDARCH=$2
	    shift; shift
	    ;;

	--mindir)
	    INSTIMGTEMPLATE=$2
	    shift; shift
	    ;;

	--stg2dir)
	    IMGPATH=$2
	    shift; shift
	    ;;

	--product)
	    PRODUCT=$2
	    shift; shift
	    ;;

	--version)
	    VERSION=$2
	    shift; shift
	    ;;

	--bugurl)
	    BUGURL=$2
	    shift; shift
	    ;;

	--output)
	    TOPDESTPATH=$2
	    shift; shift
	    ;;

	*)
	    yumconf=$1
	    shift
	    ;;
    esac
done

if [ -z "$TOPDESTPATH" -o -z "$INSTIMGTEMPLATE" -o -z "$IMGPATH" -o -z "$PRODUCT" -o -z "$VERSION" ]; then usage; fi

TOPDIR=$(echo $0 | sed "s,/[^/]*$,,")
if [ $TOPDIR = $0 ]; then
    $TOPDIR="."
fi
TOPDIR=$(cd $TOPDIR; pwd)

# modules that are needed.  this is the generic "needed for every arch" stuff
COMMONMODS="fat vfat nfs sunrpc lockd floppy cramfs loop edd pcspkr squashfs ipv6 virtio_pci"
USBMODS="ohci-hcd uhci-hcd ehci-hcd hid mousedev usb-storage sd_mod sr_mod ub appletouch"
FIREWIREMODS="ohci1394 sbp2 fw-ohci fw-sbp2 firewire-sbp2 firewire-ohci"
IDEMODS="ide-cd ide-cd_rom"
SCSIMODS="sr_mod sg st sd_mod scsi_mod iscsi_tcp"
FSMODS="fat msdos vfat ext2 ext3 ext4dev reiserfs jfs xfs gfs2 lock_nolock cifs"
LVMMODS="dm-mod dm-zero dm-snapshot dm-mirror dm-multipath dm-round-robin dm-emc dm-crypt"
RAIDMODS="md raid0 raid1 raid5 raid6 raid456 raid10 linear"
CRYPTOMODS="sha256_generic cbc aes_generic blkcipher crc32c"
PCMCIASOCKMODS="yenta_socket i82365 tcic pcmcia"
INITRDMODS="$USBMODS $FIREWIREMODS $IDEMODS $SCSIMODS $FSMODS $LVMMODS $RAIDMODS $CRYPTOMODS $COMMONMODS $PCMCIASOCKMODS =scsi =net"

. $(dirname $0)/buildinstall.functions

# Set, verify, and create paths
    IMAGEPATH=$TOPDESTPATH/images
    FULLMODPATH=$TMPDIR/instimagemods.$$
    FINALFULLMODPATH=$IMGPATH/modules
    INSTIMGPATH=$TOPDESTPATH/images
    KERNELBASE=$TMPDIR/updboot.kernel.$$

    KERNELNAME=vmlinuz

    if [ -d /sys/firmware/efi ]; then
	KERNELDIR="/boot/efi/EFI/redhat"
    else
	KERNELDIR="/boot"
    fi
    
    if [ "$BUILDARCH" = "sparc64" ]; then
	BASEARCH=sparc
    else
	BASEARCH=$BUILDARCH
    fi

    # explicit block size setting for some arches (FIXME: we compose 
    # ppc64-ish trees as ppc, so we have to set the "wrong" block size)
    if [ "$BUILDARCH" = "sparc64" ]; then
	CRAMBS="--blocksize 8192"
    elif [ "$BUILDARCH" = "sparc" ]; then
	CRAMBS="--blocksize 4096"
    else
	CRAMBS=""
    fi

    if [ $BUILDARCH = x86_64 -o $BUILDARCH = s390x ]; then
	LIBDIR=lib64
    else
	LIBDIR=lib
    fi

    rm -rf $IMAGEPATH
    rm -rf $FULLMODPATH
    rm -rf $FINALFULLMODPATH
    rm -rf $KERNELBASE
    mkdir -p $IMAGEPATH
    mkdir -p $FULLMODPATH
    mkdir -p $FINALFULLMODPATH
    mkdir -p $KERNELBASE
    mkdir -p $INSTIMGPATH

# Stuff that we need
    TRIMPCIIDS=$IMGPATH/usr/lib/anaconda-runtime/trimpciids
    GETKEYMAPS=$IMGPATH/usr/lib/anaconda-runtime/getkeymaps
    GENINITRDSZ=$IMGPATH/usr/lib/anaconda-runtime/geninitrdsz
    GENMODINFO=$IMGPATH/usr/lib/anaconda-runtime/genmodinfo
    KEYMAPS=$TMPDIR/keymaps-$BUILDARCH.$$
    SCREENFONT=$IMGPATH/usr/lib/anaconda-runtime/screenfont-${BASEARCH}.gz
    MODLIST=$IMGPATH/usr/lib/anaconda-runtime/modlist
    MODINFO=$TMPDIR/modinfo-$BUILDARCH.$$
    LOADERBINDIR=$IMGPATH/usr/lib/anaconda-runtime/loader
    BOOTDISKDIR=$IMGPATH/usr/lib/anaconda-runtime/boot
    LANGTABLE=$IMGPATH/usr/lib/anaconda/lang-table
    PCIIDS=$IMGPATH/usr/share/hwdata/pci.ids
    XDRIVERS=$IMGPATH/usr/share/hwdata/videoaliases
    XDRIVERDESCS=$IMGPATH/usr/share/hwdata/videodrivers

    REQUIREMENTS="$TRIMPCIIDS $PCIIDS $XDRIVERDESCS $GENMODINFO
		  $LANGTABLE $GETKEYMAPS"

    dieLater=
    for n in $REQUIREMENTS; do
	if [ ! -f $n ]; then
	    echo "$n doesn't exist"
	    dieLater=1
	fi
    done

    for n in $BOOTDISKDIR; do
	if [ ! -d $n ]; then
	    echo "$n doesn't exist"
	    dieLater=1
	fi
    done

    if [ -n "$dieLater" ]; then exit 1; fi

    if [ "$BUILDARCH" != "s390" -a "$BUILDARCH" != "s390x" ]; then
       # go ahead and create the keymaps so we only have to do it once
       if [ -f $IMGPATH/usr/lib/anaconda-runtime/keymaps-override-$BUILDARCH ]; then
	   echo "Found keymap override, using it"
	   cp $IMGPATH/usr/lib/anaconda-runtime/keymaps-override-$BUILDARCH $KEYMAPS
       else
	   echo "Running: $GETKEYMAPS $BUILDARCH $KEYMAPS $IMGPATH"
	   $GETKEYMAPS $BUILDARCH $KEYMAPS $IMGPATH
	   if [ $? != 0 ]; then
	       echo "Unable to create keymaps and thus can't create initrd."
	       exit 1
	   fi
       fi
    fi
 
findPackage() {
    name=$1

    pkg=$(repoquery --qf "%{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}" -c $yumconf --archlist=$KERNELARCH $name.$KERNELARCH)
    if [ -n "$pkg" ]; then
	echo $pkg
	return
    fi
    echo "cannot find package $name" >&2
}

rundepmod () {
    where=$1

    $FAKEARCH /sbin/depmod -a -F $KERNELROOT/boot/System.map-$version \
            -b $where $version
}

# This loops to make sure it resolves dependencies of dependencies of...
resdeps () {
    items="$*"

    deplist=""
    for item in $items ; do
        deps=$(awk -F ':' "/$item.ko: / { print gensub(\".*/$item.ko: \",\"\",\"g\") }" $KERNELROOT/lib/modules/$version/modules.dep)
        for dep in $deps ; do
            depfile=${dep##*/}
            depname=${dep%%.ko}
            deplist="$deplist $depname"
        done
    done
    items=$(for n in $items $deplist; do echo $n; done | sort -u)
    echo $items
}

expandModuleSet() {
    SET=""
    for name in $1; do
	char=$(echo $name | cut -c1)
        if [ $char = '=' ]; then
	    NAME=$(echo $name | cut -c2-)
	    SET="$SET $($MODLIST --modinfo-file $MODINFO $NAME)"
	else
	    SET="$SET $name"
	fi
    done

    echo $SET
}

makemoduletree() {
    MMB_DIR=$1
    MMB_MODULESET=$(resdeps $2)

    mkdir -p $MMB_DIR/lib
    mkdir -p $MMB_DIR/modules
    mkdir -p $MMB_DIR/firmware
    ln -snf ../modules $MMB_DIR/lib/modules
    ln -snf ../firmware $MMB_DIR/lib/firmware

    echo "Copying kernel modules..."
    cp -a $KERNELROOT/lib/modules/* $MMB_DIR/lib/modules/
    echo "Removing extraneous modules..."
    find $MMB_DIR/lib/modules/ -name *.ko | while read module ; do
        m=${module##*/}
        modname=${m%%.ko}
        echo $MMB_MODULESET | grep -wq $modname || {
            rm -f $module
        }
    done

    # Copy in driver firmware we want during installation.  NOTE:  This isn't
    # the ideal solution, but we'll do this for now.  What we really want is
    # for the kernel modules to include a modinfo field that names the firmware
    # file we should have.  If we can get that it would make it even easier to
    # push the kernel people to depend on the firmware packages in the kernel,
    # but we have to take small steps first.
    for module in $MODSET ; do
        case $module in
            ipw2100)
                cp $KERNELROOT/lib/firmware/ipw2100* $MBD_DIR/firmware
                ;;
            ipw2200)
                cp $KERNELROOT/lib/firmware/ipw-2.4* $MBD_DIR/firmware
                cp $KERNELROOT/lib/firmware/ipw2200* $MBD_DIR/firmware
                ;;
            iwl3945)
                cp $KERNELROOT/lib/firmware/iwlwifi-3945* $MBD_DIR/firmware
                ;;
            iwl4965)
                cp $KERNELROOT/lib/firmware/iwlwifi-4965* $MBD_DIR/firmware
                ;;
            atmel)
                cp $KERNELROOT/lib/firmware/atmel_*.bin $MBD_DIR/firmware
                ;;
            zd1211rw)
                cp -r $KERNELROOT/lib/firmware/zd1211 $MBD_DIR/firmware
                ;;
            qla2xxx)
                cp $KERNELROOT/lib/firmware/ql* $MBD_DIR/firmware
                ;;
        esac
    done

    # clean up leftover cruft
    find $MMB_DIR/lib/modules -type d -exec rmdir -f {} \; 2>/dev/null
    $MODLIST --modinfo-file $MODINFO --ignore-missing --modinfo \
	$MMB_MODULESET > $MMB_DIR/lib/modules/module-info
    # compress modules
    find $MMB_DIR/lib/modules -type f -name *.ko -exec gzip -9 {} \;
    rundepmod $MMB_DIR
    rm -f $MMB_DIR/lib/modules/*/modules.*map
    rm -f $MMB_DIR/lib/modules/*/{build,source}
    
    # create the pci.ids, from modules.alias and the X driver aliases
    awk '!/^(\t\t|#)/ { print ;if ($0 == "ffff  Illegal Vendor ID") nextfile; }' < $PCIIDS | \
      $TRIMPCIIDS $MMB_DIR/lib/modules/*/modules.alias $XDRIVERS/* > ../pci.ids
}


makeproductfile() {
    root=$1

    rm -f $root/.buildstamp
    echo $IMAGEUUID > $root/.buildstamp
    echo $PRODUCT >> $root/.buildstamp
    echo $VERSION >> $root/.buildstamp
    if [ -n "$BUGURL" ]; then
	echo $BUGURL >> $root/.buildstamp
    fi
}

instbin() {
    ROOT=$1
    BIN=$2
    DIR=$3
    DEST=$4

    install -s -m 755 $ROOT/$BIN $DIR/$DEST
    get_dso_deps $ROOT "$BIN"
    local DEPS="$DSO_DEPS"
    mkdir -p $DIR/$LIBDIR
    for x in $DEPS ; do
      cp -Lfp $ROOT/$x $DIR/$LIBDIR
   done
}

setupShellEnvironment() {
    echo "tcp     6       TCP" > $MBD_DIR/etc/protocols

    # PAM configuration
    for i in pam_limits.so pam_env.so pam_unix.so pam_deny.so; do
       cp -f $IMGPATH/$LIBDIR/security/$i $MBD_DIR/$LIBDIR/security
    done
    
    cp -f $IMGPATH/etc/pam.d/other $MBD_DIR/etc/pam.d
    cat > $MBD_DIR/etc/pam.d/login << EOF
#%PAM-1.0
auth        required      pam_env.so
auth        sufficient    pam_unix.so likeauth nullok
auth        required      pam_deny.so
account     required      pam_unix.so
password    sufficient    pam_unix.so nullok use_authtok md5 shadow
password    required      pam_deny.so
session     required      pam_limits.so
session     required      pam_unix.so
EOF
    cp -f $MBD_DIR/etc/pam.d/login $MBD_DIR/etc/pam.d/sshd
    cp -f $MBD_DIR/etc/pam.d/login $MBD_DIR/etc/pam.d/remote

    cp -f $IMGPATH/etc/security/{limits.conf,pam_env.conf} $MBD_DIR/etc/security/

    # key generation takes ages on s390, you really don't want this for every
    # installation attempt. These are NOT the keys of the installed system!
    mkdir -m 0700 -p $MBD_DIR/etc/ssh
    echo -n "Generating SSH1 RSA host key: "
    /usr/bin/ssh-keygen -q -t rsa1 -f $MBD_DIR/etc/ssh/ssh_host_key \
                        -C '' -N '' >&/dev/null
    echo
    echo -n "Generating SSH2 RSA host key: "
    /usr/bin/ssh-keygen -q -t rsa -f $MBD_DIR/etc/ssh/ssh_host_rsa_key \
                        -C '' -N '' >&/dev/null
    echo
    echo -n "Generating SSH2 DSA host key: "
    /usr/bin/ssh-keygen -q -t dsa -f $MBD_DIR/etc/ssh/ssh_host_dsa_key \
                        -C '' -N '' >&/dev/null
    echo
    (cd $MBD_DIR/etc/ssh; \
        chmod 600 ssh_host_key ssh_host_rsa_key ssh_host_dsa_key; \
        chmod 644 ssh_host_key.pub ssh_host_rsa_key.pub ssh_host_dsa_key.pub; )


    cat > $MBD_DIR/etc/ssh/sshd_config <<EOF
Port 22
HostKey /etc/ssh/ssh_host_key
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
PermitRootLogin yes
IgnoreRhosts yes
StrictModes yes
X11Forwarding yes
X11DisplayOffset 10
PrintMotd yes
XAuthLocation /sbin/xauth
KeepAlive yes
SyslogFacility AUTHPRIV
RSAAuthentication yes
PasswordAuthentication yes
PermitEmptyPasswords yes
PermitUserEnvironment yes
EOF
    chmod 600 $MBD_DIR/etc/ssh/sshd_config

    # copy in the binaries
    instbin $IMGPATH /usr/bin/login $MBD_DIR /sbin/login
    instbin $IMGPATH /usr/sbin/sshd $MBD_DIR /sbin/sshd
    instbin $IMGPATH /usr/bin/bash $MBD_DIR /sbin/bash
    instbin $IMGPATH /usr/bin/busybox $MBD_DIR /sbin/busybox
    
    # make some symlinks
    ln -sf bash $MBD_DIR/sbin/sh
    (cd $MBD_DIR/sbin;
    	set $(./busybox 2>&1| awk '/^\t([[:alnum:]_\.\[]+,)+/' | sed 's/,//g' | sed 's/ +//');
    	while [ -n "$1" ]; do
    	      if [ $1 != "busybox" -a $1 != "sh" ]; then
              	 # if file doesnt already exist, link to busybox
		   if [ ! -f "$1" ]; then
	    	      ln -sf ./busybox $1
		   else
		      [ -n "$DEBUG" ] && echo "Overriding busybox version of $1"
		   fi
    	      fi
    	      shift
	 done )
}


makeinitrd() {
    EXTRAINITRDPATH=""
    INITRDSIZE=""
    KEEP=""
    PADSIZE=""
    LOADERBIN=""
    INITRDMODULES=""
    MODULEBALLNAME="modules.cgz"
    MYLANGTABLE=$LANGTABLE
    MYLOADERTR=loader.tr
    while [ x$(echo $1 | cut -c1-2) = x"--" ]; do
	if [ $1 = "--initrdto" ]; then
	    EXTRAINITRDPATH=$2
	    shift; shift
	    continue
	elif [ $1 = "--keep" ]; then
	    KEEP=yes
	    shift
	    continue
	elif [ $1 = "--initrdsize" ]; then
	    INITRDSIZE=$2
	    shift; shift
	    continue
	elif [ $1 = "--loaderbin" ]; then
	    LOADERBIN=$2
	    shift; shift
	    continue
	elif [ $1 = "--modules" ]; then
	    INITRDMODULES=$2
	    shift; shift
	    continue
	elif [ $1 = "--moduleballname" ]; then
	    MODULEBALLNAME=$2
	    shift; shift
	    continue
	fi
	echo "Unknown option passed to makeinitrd"
	exit 1
    done
    if [ -z "$LOADERBIN" ]; then
	echo "no loader binary specified!" >&2
	exit 1
    fi
    if [ -z "$INITRDMODULES" ]; then
	echo "warning: no loader modules specified!" >&2
    fi
    if [ -z "$INITRDSIZE" ]; then
	echo "I don't know how big to make the initrd image!" >&2
	exit 1
    fi

    MBD_DIR=$TMPDIR/makebootdisk.dir.$$
    MBD_FSIMAGE=$TMPDIR/makebootdisk.initrdimage.$$
    MBD_BOOTTREE=$TMPDIR/makebootdisk.tree.$$

    rm -rf $MBD_DIR $MBD_FSIMAGE
    mkdir -p $MBD_DIR/modules
    mkdir -p $MBD_DIR/sbin
    mkdir -p $MBD_DIR/dev
    mkdir -p $MBD_DIR/etc
    mkdir -p $MBD_DIR/proc
    mkdir -p $MBD_DIR/selinux
    mkdir -p $MBD_DIR/sys
    mkdir -p $MBD_DIR/tmp
    mkdir -p $MBD_DIR/etc/terminfo/{a,b,d,l,s,v,x}
    mkdir -p $MBD_DIR/etc/udev/rules.d
    mkdir -p $MBD_DIR/etc/modprobe.d
    mkdir -p $MBD_DIR/var/run
    mkdir -p $MBD_DIR/var/lock/rpm

    if [ "$BUILDARCH" = "ppc" -o "$BUILDARCH" = "ppc64" ]; then
	mkdir -p $MBD_DIR/dev/iseries
    fi

    if [ "$BUILDARCH" = "s390" -o "$BUILDARCH" = "s390x" ]; then
	mkdir -m 111 -p $MBD_DIR/var/empty/sshd
	mkdir -p $MBD_DIR/etc/{pam.d,security}
	mkdir -p $MBD_DIR/$LIBDIR/security
	cp $IMGPATH/$LIBDIR/libpam_misc.so.0.* $MBD_DIR/$LIBDIR/libpam_misc.so.0
	ln -s /tmp $MBD_DIR/var/state/xkb
	cp $IMGPATH/usr/bin/xauth $MBD_DIR/sbin/xauth
        cp $IMGPATH/usr/sbin/cmsfs* $MBD_DIR/sbin/
    fi

    if [ -n "$INITRDMODULES" ]; then
	MODSET=`expandModuleSet "$INITRDMODULES"`
        makemoduletree $MBD_DIR "$MODSET"
    fi

    # set up the arch bits
    echo $arch > $MBD_DIR/etc/arch

    echo "Setting up arch bits"
    instbin $IMGPATH ${LOADERBINDIR##$IMGPATH}/$LOADERBIN $MBD_DIR /sbin/loader
    if [ "$BUILDARCH" != "s390" -a "$BUILDARCH" != "s390x" ]; then
        instbin $IMGPATH ${LOADERBINDIR##$IMGPATH}/init $MBD_DIR /sbin/init
	ln -s ./init $MBD_DIR/sbin/reboot
	ln -s ./init $MBD_DIR/sbin/halt
	ln -s ./init $MBD_DIR/sbin/poweroff
    else
	instbin $IMGPATH ${LOADERBINDIR##IMGPATH}/shutdown $MBD_DIR /sbin/shutdown
	instbin $IMGPATH /usr/lib/anaconda-runtime/loader/linuxrc.s390 $MBD_DIR /sbin/init
	instbin $IMGPATH /usr/sbin/dasdfmt $MBD_DIR /sbin/dasdfmt
    fi

    if [ "$BUILDARCH" != "s390" -a "$BUILDARCH" != "s390x" ]; then
       install -m 644 $KEYMAPS $MBD_DIR/etc/keymaps.gz
       install -m 644 $SCREENFONT $MBD_DIR/etc/screenfont.gz
    fi
    install -m 644 $MYLANGTABLE $MBD_DIR/etc/lang-table
    install -m 644 $IMGPATH/etc/passwd $MBD_DIR/etc/passwd
    install -m 644 $IMGPATH/etc/group $MBD_DIR/etc/group
    install -m 644 $IMGPATH/etc/nsswitch.conf $MBD_DIR/etc/nsswitch.conf

    instbin $IMGPATH /usr/bin/mount $MBD_DIR /sbin/mount
    instbin $IMGPATH /usr/sbin/mount.nfs $MBD_DIR /sbin/mount.nfs
    instbin $IMGPATH /usr/bin/umount $MBD_DIR /sbin/umount
    ln -s mount.nfs $MBD_DIR/sbin/umount.nfs

    instbin $IMGPATH /usr/sbin/udevd $MBD_DIR /sbin/udevd
    instbin $IMGPATH /usr/sbin/udevadm $MBD_DIR /sbin/udevadm
    ln -s udevadm $MBD_DIR/sbin/udevcontrol
    ln -s udevadm $MBD_DIR/sbin/udevtrigger
    ln -s udevadm $MBD_DIR/sbin/udevsettle

    # Indirect dependencies
    install -m 755 $IMGPATH/$LIBDIR/libnss_dns.so.2 $MBD_DIR/$LIBDIR/
    install -m 755 $IMGPATH/$LIBDIR/libnss_files.so.2 $MBD_DIR/$LIBDIR/
    install -m 755 $IMGPATH/$LIBDIR/libgcc_s.so.1 $MBD_DIR/$LIBDIR/

    install -m 644 $IMGPATH/etc/udev/udev.conf $MBD_DIR/etc/udev/udev.conf
    for i in $IMGPATH/etc/udev/rules.d/*.rules ; do
       install -m 644 $i $MBD_DIR/etc/udev/rules.d/${i##*/}
    done
    rm -f $MBD_DIR/etc/udev/rules.d/*persistent*
    rm -f $MBD_DIR/etc/udev/rules.d/*generator*

    install -m 644 $LOADERBINDIR/$MYLOADERTR $MBD_DIR/etc/loader.tr
    for i in a/ansi d/dumb l/linux s/screen v/vt100 v/vt100-nav v/vt102 x/xterm x/xterm-color g/gnome ; do
	[ -f $IMGPATH/usr/share/terminfo/$i ] && \
	  install -m 644 $IMGPATH/usr/share/terminfo/$i $MBD_DIR/etc/terminfo/$i
    done

    makeproductfile $MBD_DIR

    for n in insmod rmmod modprobe; do
	instbin $IMGPATH /usr/sbin/$n $MBD_DIR /sbin/$n
    done

    ln -s /usr/bin/sh $MBD_DIR/sbin/sh
    ln -s /sbin/init $MBD_DIR/init
    ln -s /proc/mounts $MBD_DIR/etc/mtab
    ln -s sbin $MBD_DIR/bin
    mkdir -p $MBD_DIR/var/lib
    ln -s ../../tmp $MBD_DIR/var/lib/xkb

    # s390/s390x need sshd setup
    if [ "$BUILDARCH" = "s390" -o "$BUILDARCH" = "s390x" ]; then
	setupShellEnvironment
    fi

cat > $MBD_DIR/.profile <<EOF
PATH=/bin:/usr/bin:/usr/sbin:/mnt/sysimage/sbin:/mnt/sysimage/usr/sbin:/mnt/sysimage/bin:/mnt/sysimage/usr/bin
export PATH
EOF

    rm -f $MBD_FSIMAGE
    (cd $MBD_DIR; find . |cpio --quiet -c -o) |gzip -9 > $MBD_FSIMAGE

    size=$(du $MBD_FSIMAGE | awk '{ print $1 }')

    echo "Wrote $MBD_FSIMAGE (${size}k compressed)"

    if [ -n "$EXTRAINITRDPATH" ]; then
	mkdir -p `dirname $EXTRAINITRDPATH`
	cp -a $MBD_FSIMAGE $EXTRAINITRDPATH
    fi

    if [ -z "$KEEP" ]; then
	rm -rf $MBD_FSIMAGE $MBD_BOOTTREE
    fi
}

makeinstimage () {
    imagename=$1
    type=$2
    tmp=$TMPDIR/instimage.dir.$$

    rm -rf $tmpimage $tmp
    mkdir -p $mntpoint $tmp

    mkdir -p $tmp
    (cd $INSTIMGTEMPLATE; find . | cpio --quiet -p $tmp)
    makeproductfile $tmp

    if [ -z "$type" -o "$type" = "cramfs" ]; then 
        echo "Running mkcramfs $CRAMBS $tmp $INSTIMGPATH/${imagename}2.img"
        mkfs.cramfs $CRAMBS $tmp $TMPDIR/${imagename}2.img.$$
    elif [ "$type" = "squashfs" ]; then
        echo "Running mksquashfs $tmp $TMPDIR/${imagename}2.img -all-root -no-fragments -no-progress"
        mksquashfs $tmp $TMPDIR/${imagename}2.img.$$ -all-root -no-fragments -no-progress
        chmod 0644 $TMPDIR/${imagename}2.img.$$
    fi
    cp $TMPDIR/${imagename}2.img.$$ $INSTIMGPATH/${imagename}2.img
    size=$(ls -l $INSTIMGPATH/${imagename}2.img | awk '{print $5}')
    size=$(expr $size / 1024)
    echo "Wrote $INSTIMGPATH/${imagename}2.img (${size}k)..."
    relpath=${INSTIMGPATH#$TOPDESTPATH/}
    echo "instimage = ${relpath}/${imagename}2.img" >> $TOPDESTPATH/.treeinfo
    rm -rf $tmp
}

makemainimage () {
    imagename=$1
    type=$2
    mmi_tmpimage=$TMPDIR/instimage.img.$$
    mmi_mntpoint=$TMPDIR/instimage.mnt.$$
    
    rm -rf $mmi_tmpimage $mmi_mntpoint
    mkdir $mmi_mntpoint

    if [ $type = "ext2" ]; then
        SIZE=$(du -sk $IMGPATH | awk '{ print int($1 * 1.1) }')
        if [ -d $IMGPATH/usr/lib/anaconda-runtime ]; then
	    ERROR=$(du -sk $IMGPATH/usr/lib/anaconda-runtime | awk '{ print $1 }')
	    SIZE=$(expr $SIZE - $ERROR)
        fi
        dd if=/dev/zero bs=1k count=${SIZE} of=$mmi_tmpimage 2>/dev/null
        mke2fs -q -F $mmi_tmpimage > /dev/null 
	tune2fs -c0 -i0 $mmi_tmpimage >/dev/null
        mount -o loop $mmi_tmpimage $mmi_mntpoint

        (cd $IMGPATH; find . | fgrep -v "./usr/lib/anaconda-runtime" |
	        cpio -H crc -o) | (cd $mmi_mntpoint; cpio -iumd)
        makeproductfile $mmi_mntpoint
        umount $mmi_mntpoint
        rmdir $mmi_mntpoint
    elif [ $type = "squashfs" ]; then
        makeproductfile $IMGPATH
        echo "Running mksquashfs $IMGPATH $mmi_tmpimage -all-root -no-fragments -no-progress"
        mksquashfs $IMGPATH $mmi_tmpimage -all-root -no-fragments -no-progress
        chmod 0644 $mmi_tmpimage
        SIZE=$(expr `cat $mmi_tmpimage | wc -c` / 1024)
    elif [ $type = "cramfs" ]; then
        makeproductfile $IMGPATH
        echo "Running mkcramfs $CRAMBS $IMGPATH $mmi_tmpimage"
        mkfs.cramfs $CRAMBS $IMGPATH $mmi_tmpimage
        SIZE=$(expr `cat $mmi_tmpimage | wc -c` / 1024)
    fi
    
    cp $mmi_tmpimage $INSTIMGPATH/${imagename}.img
    chmod 644 $INSTIMGPATH/${imagename}.img

    echo "Wrote $INSTIMGPATH/${imagename}.img (${SIZE}k)"
    relpath=${INSTIMGPATH#$TOPDESTPATH/}
    echo "mainimage = ${relpath}/${imagename}.img" >> $TOPDESTPATH/.treeinfo
    
    rm $mmi_tmpimage
}

makeSecondStage() {
    echo "[stage2]" >> $TOPDESTPATH/.treeinfo
    echo "Building minstg.img"
    makeinstimage "minstg" "squashfs"
    [ $? = 0 ] || exit 1
    echo "Building stage2.img"
    makemainimage "stage2" "squashfs"
    [ $? = 0 ] || exit 1
}

doPostImages() {
   /bin/true
}

# source the architecture specific mk-images file so we can call functions
# in it
if [ ${BUILDARCH} = s390x ]; then
    # FIXME: this is a bad hack for s390, but better than copying for now
    source $TOPDIR/mk-images.s390
elif [ ${BUILDARCH} = ppc64 ]; then
    # ... and similar for ppc64
    source $TOPDIR/mk-images.ppc 
elif [ ${BUILDARCH} = "x86_64" -o ${BUILDARCH} = "i386" ]; then
    source $TOPDIR/mk-images.x86
else
    source $TOPDIR/mk-images.${BUILDARCH}
fi

# Find the kernel, unpack it, and verify it
kerneltags="kernel"
arches="$BUILDARCH"
if [ "$BUILDARCH" = "ppc" ]; then
    arches="ppc64 ppc64iseries ppc"
elif [ "$BUILDARCH" = "i386" ]; then
    arches="i586"
    kerneltags="kernel kernel-xen"
elif [ "$BUILDARCH" = "x86_64" ]; then
    kerneltags="kernel kernel-xen"
elif [ "$BUILDARCH" = "ia64" ]; then
    kerneltags="kernel kernel-xen"
fi

foundakernel=""
for KERNELARCH in $arches; do
  for kernelvers in $kerneltags; do
    kpackage=$(findPackage $kernelvers)
    if [ "$KERNELARCH" = "i586" -a -z "$kpackage" ]; then
	echo "No i586 kernel, trying i686..."
	KERNELARCH="i686"
	kpackage=$(findPackage $kernelvers)
    fi

    if [ -z "$kpackage" ]; then
	echo "Unable to find kernel package $kernelvers"
	continue
    fi

    yumdownloader -c $yumconf --archlist=$KERNELARCH $kpackage
    kpackage="$kpackage.rpm"
    if [ ! -f "$kpackage" ]; then
	echo "kernel ($kernelvers) doesn't exist for $KERNELARCH.  skipping"
	continue
    fi

    KERNELROOT=$KERNELBASE/$KERNELARCH
    mkdir -p $KERNELROOT

    foundakernel="yes"

    if [ "${kernelvers}" = "kernel-xen" ]; then kerneltag="xen" ; fi

    vmlinuz=$(rpm --nodigest --nosignature -qpl $kpackage |grep ^/boot/vmlinuz | head -n 1)
    version=${vmlinuz##/boot/vmlinuz-}
    arch=$(rpm --nodigest --nosignature --qf '%{ARCH}\n' -qp $kpackage)

    rpm2cpio $kpackage | (cd $KERNELROOT; cpio --quiet -iumd)
    rm -f $kpackage
    # expand out any available firmware too
    for p in $(repoquery -c $yumconf '*firmware*') ; do yumdownloader -c $yumconf $p ; rpm2cpio *firmware*.rpm | (cd $KERNELROOT; cpio --quiet -iumd) ; rm -f *firmware*.rpm ; done

    if [ ! -d "$KERNELROOT/lib/modules/$version" ]; then
	echo "$KERNELROOT/lib/modules/$version is not a valid modules directory" 2>&1
	exit 1
    fi

    if [ ! -f "$KERNELROOT/$KERNELDIR/${KERNELNAME}-$version" ]; then
	echo "$KERNELROOT/$KERNELDIR/${KERNELNAME}-$version does not exist"
	exit 1
    fi

    allmods=$(find $KERNELROOT/lib/modules/$version -name *.ko)

    rundepmod $KERNELROOT
    $GENMODINFO $KERNELROOT/lib/modules/$version > $MODINFO

    # make the boot images
    makeBootImages
  done
done

# do some clean up before making the cramfs of the second stage
rm -rf $INSTIMGTEMPLATE/usr/lib/anaconda-runtime $INSTIMGTEMPLATE/usr/lib/syslinux $IMGPATH/usr/lib/syslinux

if [ -n "$foundakernel" ]; then
  makeSecondStage
  rm -rf $KERNELBASE
fi

doPostImages

cd $TOPDIR