Initial import

1 files changed, 204 insertions, 0 deletions

diff --git a/install-grub b/install-grub
new file mode 100755
index 000000000000..70b06600b202
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+++ b/install-grub
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+#!/bin/bash
+
+#
+# This is a little helper script that tries to convert linux-style device
+# names to grub-style.  It's not very smart, so it
+# probably won't work for more complicated setups.
+#
+# If it doesn't work for you, try installing grub manually:
+#
+#    # mkdir -p /boot/grub
+#    # cp /usr/lib/grub/i386-pc/* /boot/grub/
+#
+# Then start up the 'grub' shell and run something like the following:
+#
+#    grub> root (hd0,0)
+#    grub> setup (hd0)
+#
+# The "root" line should point to the partition your kernel is located on,
+# /boot if you have a separate boot partition, otherwise your root (/).
+#
+# The "setup" line tells grub which disc/partition to install the
+# bootloader to.  In the example above, it will install to the MBR of the
+# primary master hard drive.
+#
+
+usage() {
+  echo "usage: install-grub <install_device> [boot_device]"
+  echo
+  echo "where <install_device> is the device where Grub will be installed"
+  echo "and [boot_device] is the partition that contains the /boot"
+  echo "directory (auto-detected if omitted)"
+  echo
+  echo "examples: install-grub /dev/hda"
+  echo "          install-grub /dev/hda /dev/hda1"
+  echo
+  exit 0
+}
+
+## new install-grub, code was taken from setup script
+ROOTDEV=${1}
+PART_ROOT=${2}
+
+if [ "${ROOTDEV}" = "" ]; then
+  usage
+fi
+if [ "${PART_ROOT}" = "" ]; then
+  PART_ROOT=$(mount | grep "on /boot type" | cut -d' ' -f 1)
+fi
+if [ "$PART_ROOT" = "" ]; then
+  PART_ROOT=$(mount | grep "on / type" | cut -d' ' -f 1)
+fi
+if [ "${PART_ROOT}" = "" ]; then
+  echo "error: could not determine BOOT_DEVICE, please specify manually" >&2
+  exit 1
+fi
+
+
+get_grub_map() {
+  [ -e /tmp/dev.map ]  && rm /tmp/dev.map	
+  /sbin/grub --no-floppy --device-map /tmp/dev.map >/tmp/grub.log 2>&1 <<EOF
+quit
+EOF
+}
+
+mapdev() {
+  partition_flag=0
+  device_found=0
+  devs=$(cat /tmp/dev.map | grep -v fd | sed 's/ *\t/ /' | sed ':a;$!N;$!ba;s/\n/ /g')
+  linuxdevice=$(echo $1 | cut -b1-8)
+  if [ "$(echo ${1} | egrep '[0-9]$')" ]; then
+    # /dev/hdXY
+    pnum=$(echo ${1} | cut -b9-)
+    pnum=$((${pnum}-1))
+    partition_flag=1
+  fi
+  for  dev in ${devs}; do
+    if [ "(" = $(echo ${dev} | cut -b1) ]; then
+      grubdevice="${dev}"
+    else
+      if [ "${dev}" = "${linuxdevice}" ]; then
+	device_found=1
+	break   
+      fi
+    fi
+  done	
+  if [ "${device_found}" = "1" ]; then
+    if [ "${partition_flag}" = "0" ]; then
+      echo "${grubdevice}"
+    else
+      grubdevice_stringlen=${#grubdevice}
+      let grubdevice_stringlen--
+      grubdevice=$(echo $grubdevice | cut -b1-$grubdevice_stringlen)
+      echo "${grubdevice},${pnum})"
+    fi
+  else
+    echo " DEVICE NOT FOUND"
+  fi
+}
+
+dogrub() {
+  get_grub_map	
+  if [ ! -f /boot/grub/menu.lst ]; then
+    echo "Error: Couldn't find /boot/grub/menu.lst.  Is GRUB installed?"
+    exit 1
+  fi
+  # try to auto-configure GRUB...
+  if [ "${PART_ROOT}" != "" -a "$S_GRUB" != "1" ]; then
+    grubdev=$(mapdev ${PART_ROOT})
+    # look for a separately-mounted /boot partition
+    bootdev=$(mount | grep /boot | cut -d' ' -f 1)
+    if [ "${grubdev}" != "" -o "${bootdev}" != "" ]; then
+      cp /boot/grub/menu.lst /tmp/.menu.lst
+      # remove the default entries by truncating the file at our little tag (#-*)
+      head -n $(cat /tmp/.menu.lst | grep -n '#-\*' | cut -d: -f 1) /tmp/.menu.lst >/boot/grub/menu.lst
+      rm -f /tmp/.menu.lst
+
+      for kernel in /boot/vmlinuz-linux* /boot/vmlinuz26-*; do
+	if [ ${kernel} == "/boot/vmlinuz-linux*" ] || [ ${kernel} == "/boot/vmlinuz26-*" ] ; then
+	  echo > /dev/null
+	else
+	  VMLINUZ=$( echo ${kernel} | cut -c 7- )
+
+	  if [ "$( echo ${VMLINUZ} | cut -c -13 )" = "vmlinuz-linux" ]; then # new naming scheme for linux > 3.0
+	    extension=$( echo ${VMLINUZ} | cut -c 14- )
+	    INITRAMFS_BASENAME=initramfs-linux${extension}
+	  else # old naming scheme for lts kernel
+	    extension=$( echo ${VMLINUZ} | cut -c 10- ) 
+	    INITRAMFS_BASENAME=kernel26${extension}
+	  fi
+
+	  echo "" >>/boot/grub/menu.lst
+	  echo "# (0) Arch Linux" >>/boot/grub/menu.lst
+	  echo "title  Arch Linux - ${VMLINUZ}" >>/boot/grub/menu.lst
+	  subdir=
+	  if [ "${bootdev}" != "" ]; then
+	    grubdev=$(mapdev ${bootdev})
+	  else
+	    subdir="/boot"
+	  fi
+	  echo "root   ${grubdev}" >>/boot/grub/menu.lst
+	  echo "kernel ${subdir}/${VMLINUZ} root=${PART_ROOT} ro" >>/boot/grub/menu.lst
+	  echo "initrd ${subdir}/${INITRAMFS_BASENAME}.img" >>/boot/grub/menu.lst
+	  echo "" >>/boot/grub/menu.lst
+		
+	  # adding fallback/full image
+	  echo "# (1) Arch Linux" >>/boot/grub/menu.lst
+	  echo "title  Arch Linux Fallback - ${VMLINUZ}" >>/boot/grub/menu.lst
+	  echo "root   ${grubdev}" >>/boot/grub/menu.lst
+	  echo "kernel ${subdir}/${VMLINUZ} root=${PART_ROOT} ro" >>/boot/grub/menu.lst
+	  echo "initrd ${subdir}/${INITRAMFS_BASENAME}-fallback.img" >>/boot/grub/menu.lst
+	  echo "" >>/boot/grub/menu.lst
+	fi
+      done
+    fi
+  fi
+
+  echo "Installing the GRUB bootloader..."
+  cp -a /usr/lib/grub/i386-pc/* /boot/grub/
+  sync
+
+  # freeze xfs filesystems to enable grub installation on xfs filesystems
+  if [ -x /usr/sbin/xfs_freeze ]; then
+    [ "$(stat -fLc %T /boot)" == "xfs" ] && /usr/sbin/xfs_freeze -f /boot > /dev/null 2>&1
+    [ "$(stat -fLc %T /)" == "xfs" ] && /usr/sbin/xfs_freeze -f / > /dev/null 2>&1
+  fi
+
+  # look for a separately-mounted /boot partition
+  bootpart=$(mount | grep /boot | cut -d' ' -f 1)
+  if [ "${bootpart}" = "" ]; then
+    bootpart=${PART_ROOT}
+  fi
+  bootpart=$(mapdev ${bootpart})
+  bootdev=$(mapdev ${ROOTDEV})
+  if [ "${bootpart}" = "" ]; then
+    echo "Error: Missing/Invalid root device: ${bootpart}"
+    exit 1
+  fi
+
+  echo ${bootpart}
+  echo ${bootdev}
+  /sbin/grub --no-floppy --batch >/tmp/grub.log 2>&1 <<EOF
+root ${bootpart}
+setup ${bootdev}
+quit
+EOF
+  cat /tmp/grub.log
+
+  # unfreeze xfs filesystems
+  if [ -x /usr/sbin/xfs_freeze ]; then
+    [ "$(stat -fLc %T /boot)" == "xfs" ] && /usr/sbin/xfs_freeze -u /boot > /dev/null 2>&1
+    [ "$(stat -fLc %T /)" == "xfs" ] && /usr/sbin/xfs_freeze -u / > /dev/null 2>&1
+  fi
+  if grep "Error [0-9]*: " /tmp/grub.log >/dev/null; then
+    echo "Error installing GRUB. (see /tmp/grub.log for output)"
+    exit 1
+  fi
+  echo "GRUB was successfully installed."
+
+  rm -f /tmp/grub.log
+
+  exit 0
+}
+
+dogrub