+ # Set root password
+ echo "* Setting root password"
+
+ if [ -z "$ROOT_PASSWORD" ] ; then
+ # Generate an encrypted password with crypt() if not defined
+ # in a static configuration.
+ ROOT_PASSWORD=$(python <<EOF
+import crypt, random, string
+salt = [random.choice(string.letters + string.digits + "./") for i in range(0,8)]
+print crypt.crypt('$PLC_ROOT_PASSWORD', '\$1\$' + "".join(salt) + '\$')
+EOF
+)
+ fi
+
+ # build/passwd copied out by prep.sh
+ sed -e "s@^root:[^:]*:\(.*\)@root:$ROOT_PASSWORD:\1@" ${VARIANT}/passwd >$OVERLAY/etc/passwd
+
+ # recent bootCDs rely on a standard systemd startup sequence
+ # so allow debug key to enter in this context whenever that makes sense
+ mkdir -p $OVERLAY/root/.ssh
+ chmod 700 $OVERLAY/root/.ssh
+ cp $PLC_DEBUG_SSH_KEY_PUB $OVERLAY/root/.ssh/authorized_keys
+ chmod 600 $OVERLAY/root/.ssh/authorized_keys
+
+ # Install node configuration file (e.g., if node has no floppy disk or USB slot)
+ if [ -f "$NODE_CONFIGURATION_FILE" ] ; then
+ echo "* Installing node configuration file $NODE_CONFIGURATION_FILE -> /usr/boot/plnode.txt of the bootcd image"
+ install -D -m 644 $NODE_CONFIGURATION_FILE $OVERLAY/usr/boot/plnode.txt
+ NODE_ID=$(source $NODE_CONFIGURATION_FILE; echo $NODE_ID)
+ echo "* Building network configuration for $NODE_ID"
+ plnet -- --root $OVERLAY --files-only --program BootCD $NODE_ID
+ fi
+
+ [ -n "$IS_SERIAL" ] && KERNEL_ARGS="$KERNEL_ARGS ${console_spec}"
+
+ # tmp: should be restricted to f15 nodes and above
+ # making sure the network interfaces are still numbered eth0 and above
+ KERNEL_ARGS="$KERNEL_ARGS biosdevname=0"
+ # making sure selinux is turned off - somehow this is needed with lxc/f14
+ KERNEL_ARGS="$KERNEL_ARGS selinux=0"
+ # add any debug flag if any (defined in the header of this script)
+ KERNEL_ARGS="$KERNEL_ARGS $KERNEL_DEBUG_ARGS"
+ # propagate kernel args for later boot stages
+ [ -n "$KERNEL_ARGS" ] && echo "$KERNEL_ARGS" > $OVERLAY/kargs.txt
+
+ # Pack overlay files into a compressed archive
+ echo "* Compressing overlay image"
+ (cd $OVERLAY && find . | cpio --quiet -c -o) | gzip -9 >$ISOFS/overlay.img
+
+ rm -rf $OVERLAY
+ pop_cleanup
+
+ if [ -n "$CUSTOM_DIR" ]; then
+ echo "* Compressing custom image"
+ (cd "$CUSTOM_DIR" && find . | cpio --quiet -c -o) | gzip -9 >$ISOFS/custom.img
+ fi
+
+ # Calculate ramdisk size (total uncompressed size of both archives)
+ ramdisk_size=$(gzip -l $ISOFS/bootcd.img $ISOFS/overlay.img ${CUSTOM_DIR:+$ISOFS/custom.img} | tail -1 | awk '{ print $2; }') # bytes
+ ramdisk_size=$((($ramdisk_size + 1023) / 1024)) # kilobytes
+
+ echo "$FULL_VERSION_STRING" >$ISOFS/pl_version
+
+ popd
+}
+
+#################### plain ISO
+function build_iso() {
+ local iso="$1" ; shift
+ local custom="$1"
+
+ # Write isolinux configuration
+ cat >$ISOFS/isolinux.cfg <<EOF
+${console_serial_line}
+PROMPT 0
+DEFAULT planetlab-bootcd
+
+LABEL planetlab-bootcd
+ DISPLAY pl_version
+ LINUX kernel
+ APPEND ramdisk_size=$ramdisk_size initrd=bootcd.img,overlay.img${custom:+,custom.img} root=/dev/ram0 rw ${KERNEL_ARGS}
+EOF
+
+ # Create ISO image
+ echo "* Generated isolinux.cfg -------------------- BEG"
+ cat $ISOFS/isolinux.cfg
+ echo "* Generated isolinux.cfg -------------------- END"
+ echo "* Creating ISO image in pwd=$(pwd)"
+ echo "* with command mkisofs -o $iso $MKISOFS_OPTS $ISOFS"
+ mkisofs -o "$iso" $MKISOFS_OPTS $ISOFS
+}
+
+#################### USB with partitions
+function build_usb_partition() {
+ echo -n "* Creating USB image with partitions..."
+ local usb="$1" ; shift
+ local custom="$1"
+
+ local size=$(($(du -Lsk $ISOFS | awk '{ print $1; }') + $FREE_SPACE))
+ size=$(( $size / 1024 ))
+
+ local heads=64
+ local sectors=32
+ local cylinders=$(( ($size*1024*2)/($heads*$sectors) ))
+ local offset=$(( $sectors*512 ))
+
+ if [ -f /usr/lib/syslinux/mkdiskimage ] ; then
+ /usr/lib/syslinux/mkdiskimage -M -4 "$usb" $size $heads $sectors
+ else
+ mkdiskimage -M -4 "$usb" $size $heads $sectors
+ fi
+
+ cat >${BUILDTMP}/mtools.conf<<EOF
+drive z:
+file="${usb}"
+cylinders=$cylinders
+heads=$heads
+sectors=$sectors
+offset=$offset
+mformat_only
+mtools_skip_check=1
+EOF
+ # environment variable for mtools
+ export MTOOLSRC="${BUILDTMP}/mtools.conf"
+
+ ### COPIED FROM build_usb() below!!!!
+ echo -n " populating USB image... "
+ mcopy -bsQ -i "$usb" "$ISOFS"/* z:/
+
+ # Use syslinux instead of isolinux to make the image bootable
+ tmp="${BUILDTMP}/syslinux.cfg"
+ cat >$tmp <<EOF
+${console_serial_line}
+PROMPT 0
+DEFAULT planetlab-bootcd
+
+LABEL planetlab-bootcd
+ DISPLAY pl_version
+ LINUX kernel
+ APPEND ramdisk_size=$ramdisk_size initrd=bootcd.img,overlay.img${custom:+,custom.img} root=/dev/ram0 rw ${KERNEL_ARGS}
+EOF
+ mdel -i "$usb" z:/isolinux.cfg 2>/dev/null || :
+ mcopy -i "$usb" "$tmp" z:/syslinux.cfg
+ rm -f "$tmp"
+ rm -f "${MTOOLSRC}"
+ unset MTOOLSRC
+
+ echo "making USB image bootable."
+ syslinux -o $offset "$usb"
+
+}
+
+#################### plain USB
+function build_usb() {
+ echo -n "* Creating USB image... "
+ local usb="$1" ; shift
+ local custom="$1"
+
+ rm -f "$usb"
+ mkfs.vfat -C "$usb" $(($(du -Lsk $ISOFS | awk '{ print $1; }') + $FREE_SPACE))
+
+ cat >${BUILDTMP}/mtools.conf<<EOF
+mtools_skip_check=1
+EOF
+ # environment variable for mtools
+ export MTOOLSRC="${BUILDTMP}/mtools.conf"
+
+ # Populate it
+ echo -n " populating USB image... "
+ mcopy -bsQ -i "$usb" "$ISOFS"/* ::/
+
+ # Use syslinux instead of isolinux to make the image bootable
+ tmp="${BUILDTMP}/syslinux.cfg"
+ cat >$tmp <<EOF
+${console_serial_line}
+PROMPT 0
+DEFAULT planetlab-bootcd
+
+LABEL planetlab-bootcd
+ DISPLAY pl_version
+ LINUX kernel
+ APPEND ramdisk_size=$ramdisk_size initrd=bootcd.img,overlay.img${custom:+,custom.img} root=/dev/ram0 rw ${KERNEL_ARGS}
+EOF
+ mdel -i "$usb" ::/isolinux.cfg 2>/dev/null || :
+ mcopy -i "$usb" "$tmp" ::/syslinux.cfg
+ rm -f "$tmp"
+ rm -f "${MTOOLSRC}"
+ unset MTOOLSRC
+
+ echo "making USB image bootable."
+ syslinux "$usb"
+}
+
+#################### utility to setup CRAMFS related support
+function prepare_cramfs() {
+ [ -n "$CRAMFS_PREPARED" ] && return 0
+ local custom=$1;
+
+ echo "* Setting up CRAMFS-based images"
+ local tmp="${BUILDTMP}/cramfs-tree"
+ mkdir -p "$tmp"
+ push_cleanup rm -rf $tmp
+ pushd $tmp
+ gzip -d -c $ISOFS/bootcd.img | cpio -diu
+ gzip -d -c $ISOFS/overlay.img | cpio -diu
+ [ -n "$custom" ] && \
+ gzip -d -c $ISOFS/custom.img | cpio -diu
+
+ # clean out unnecessary rpm lib
+ echo "* clearing var/lib/rpm/*"
+ rm -f var/lib/rpm/*
+
+ # bootcd requires this directory
+ mkdir -p mnt/confdevice
+
+ # relocate various directory to /tmp
+ rm -rf root
+ ln -fs /tmp/root root
+ ln -fs /sbin/init linuxrc
+ ln -fs /tmp/resolv.conf etc/resolv.conf
+ ln -fs /tmp/etc/mtab etc/mtab
+
+ # have pl_rsysinit copy over appropriate etc & var directories into /tmp/etc/
+ # make /tmp/etc
+ echo "* renaming dirs in ./etc"
+ pushd etc
+ for dir in `find * -type d -prune | grep -v rc.d`; do
+ mv ${dir} ${dir}_o
+ ln -fs /tmp/etc/${dir} ${dir}