Integrate netboot package generation

[grml-live.git] / scripts / generate_netboot_package.sh

diff --git a/scripts/generate_netboot_package.sh b/scripts/generate_netboot_package.sh
new file mode 100755 (executable)
index 0000000..5eae60a
--- /dev/null
+++ b/scripts/generate_netboot_package.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+################################################################################
+# Purpose: hackish script to generate netboot package without booting the system
+################################################################################
+
+if [ $# -lt 2 ] ; then
+  echo "Usage: $0 <chroot> <output_file>" >&2
+  exit 1
+fi
+
+set -u
+set -e
+
+CHROOT="${1}"
+OUTPUT_FILE="${2}"
+
+if ! [ -f "${CHROOT}/etc/grml_version" ] ; then
+  echo "Error: could not read ${CHROOT}/etc/grml_version" >&2
+  exit 1
+fi
+
+GRML_VERSION="$(awk '{print $1"_"$2}' ${CHROOT}/etc/grml_version)"
+
+if ! [ -r "${CHROOT}/usr/lib/syslinux/pxelinux.0" ] ; then
+  echo "Error: /usr/lib/syslinux/pxelinux.0 not found. Please install syslinux[-common." >&2
+  exit 1
+fi
+
+OUTPUTDIR="$(mktemp -d)" || exit 1
+WORKING_DIR="${OUTPUTDIR}/grml_netboot_package_${GRML_VERSION}/tftpboot/"
+mkdir -p "$WORKING_DIR" || exit 2
+
+cp "$CHROOT"/boot/vmlinuz-*    "$WORKING_DIR"/linux26
+cp "$CHROOT"/boot/initrd.img-* "$WORKING_DIR"/initrd.img
+cp "$CHROOT"/usr/lib/syslinux/pxelinux.0 "${WORKING_DIR}/pxelinux.0"
+
+mkdir -p "${WORKING_DIR}/pxelinux.cfg"
+cat > "${WORKING_DIR}/pxelinux.cfg/default" << EOF
+default grml
+label grml
+  kernel linux26
+  append initrd=initrd.img root=/dev/nfs rw nfsroot=192.168.0.1:/live/image boot=live apm=power-off quiet nomce noprompt noeject vga=791 
+EOF
+
+if tar -C "$OUTPUTDIR" -acf "${OUTPUT_FILE}" "grml_netboot_package_${GRML_VERSION}" ; then
+  rm -rf "${OUTPUTDIR}"
+  echo "Generated ${OUTPUT_FILE}"
+fi
+
+## END OF FILE #################################################################