[Lunar-commits] <moonbase> Subject: syslinux: Add bootloader plugin for sys/extlinux

[Auke Kok]

commit d662fac5203cc3888f80622994989021648151ef
Author: Auke Kok <sofar at foo-projects.org>
Date:   Sun Sep 5 23:55:42 2010 +0200

    Subject: syslinux: Add bootloader plugin for sys/extlinux
---
 utils/syslinux/plugin.d/bootloader-syslinux.plugin |   70 ++++++++++++++++++++
 1 files changed, 70 insertions(+), 0 deletions(-)

diff --git a/utils/syslinux/plugin.d/bootloader-syslinux.plugin b/utils/syslinux/plugin.d/bootloader-syslinux.plugin
new file mode 100644
index 0000000..0204104
--- /dev/null
+++ b/utils/syslinux/plugin.d/bootloader-syslinux.plugin
@@ -0,0 +1,70 @@
+#!/bin/bash
+#############################################################
+#                                                           #
+# bootloader-syslinux.plugin - plugin that performs         #
+#                              extlinux maintenance         #
+#                                                           #
+#############################################################
+#                                                           #
+# Copyright 2010 by Auke Kok under GPLv2                    #
+#                                                           #
+#############################################################
+
+
+plugin_kernel_updatebootloader_syslinux() {
+  # preferred? - master switch for experienced users
+  if [ -n "$BOOTLOADER" -a "$BOOTLOADER" != "syslinux" ]; then
+    return 2
+  fi
+  if [ ! -d /boot/extlinux ]; then
+    return 2
+  fi
+  debug_msg "plugin_kernel_updatebootloader_extlinux ($@)"
+
+  local BOOTPART BOOTDIR ROOTPART TMP DONE
+
+  entry() {
+    echo "label $2"
+    echo "        menu label $2"
+    echo "        kernel $3/$1"
+    echo "        append root=$4 ro quiet"
+    echo ""
+  }
+
+  cp /boot/extlinux/extlinux.conf /boot/extlinux/extlinux.conf.new || return 1
+
+  # determine if BOOT is a separate partition:
+  BOOTPART=$(grep "^/dev/" /etc/mtab | awk '($2 == "/boot"){print $1}')
+  if [ -n "$BOOTPART" ]; then
+    BOOTDIR=""
+  else
+    BOOTDIR="/boot"
+  fi
+  # determine what to tell our kernel is the rootfs partition
+  ROOTPART=$(grep "^/dev/" /etc/mtab | awk '($2 == "/"){print $1}')
+
+  TMP=$(temp_create)
+  while read LINE ; do
+    if [ -z "$DONE" ]; then
+      if echo "$LINE" | grep -q "^\s*label" ; then
+        # insert
+        entry "$1" "$2" "$BOOTDIR" "$ROOTPART" >> $TMP
+        DONE="x"
+      fi
+    fi
+    echo "$LINE" >> $TMP
+  done < /boot/extlinux/extlinux.conf
+  cp $TMP /boot/extlinux/extlinux.conf
+  temp_destroy $TMP
+
+  if query "Edit syslinux configuration manually ?" n ; then
+    edit_file /boot/extlinux/extlinux.conf
+  fi
+
+  # right now we want to have it run all bootloaders?
+  return 2
+}
+
+
+plugin_register KERNEL_UPDATEBOOTLOADER plugin_kernel_updatebootloader_syslinux
+