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authorJames Meyer <James.meyer@operamail.com>2008-10-02 03:19:12 (GMT)
committerJames Meyer <James.meyer@operamail.com>2008-10-02 03:19:12 (GMT)
commit0e2532d4e8f4eed5e047f1db54d5c03ba849ec0a (patch)
treec0aa2c0b53c317be87eacfcb77b63f53f1f415e7 /abs/core/grub/install-grub
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initial import
Diffstat (limited to 'abs/core/grub/install-grub')
-rwxr-xr-xabs/core/grub/install-grub187
1 files changed, 187 insertions, 0 deletions
diff --git a/abs/core/grub/install-grub b/abs/core/grub/install-grub
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@@ -0,0 +1,187 @@
+#!/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=$2
+VMLINUZ=vmlinuz26
+
+if [ "$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 $(cat /tmp/.menu.lst | grep -n '#-\*' | cut -d: -f 1) /tmp/.menu.lst >/boot/grub/menu.lst
+ rm -f /tmp/.menu.lst
+ echo "" >>/boot/grub/menu.lst
+ echo "# (0) Arch Linux" >>/boot/grub/menu.lst
+ echo "title Arch Linux" >>/boot/grub/menu.lst
+ subdir=
+ if [ "$bootdev" != "" ]; then
+ grubdev=$(mapdev $bootdev)
+ else
+ subdir="/boot"
+ fi
+ echo "root $grubdev" >>/boot/grub/menu.lst
+ echo "kernel $subdir/$VMLINUZ root=$PART_ROOT ro" >>/boot/grub/menu.lst
+ if [ "$VMLINUZ" = "vmlinuz26" ]; then
+ echo "initrd $subdir/kernel26.img" >>/boot/grub/menu.lst
+ fi
+ echo "" >>/boot/grub/menu.lst
+ # adding fallback/full image
+ echo "# (1) Arch Linux" >>/boot/grub/menu.lst
+ echo "title Arch Linux Fallback" >>/boot/grub/menu.lst
+ echo "root $grubdev" >>/boot/grub/menu.lst
+ echo "kernel $subdir/$VMLINUZ root=$PART_ROOT ro" >>/boot/grub/menu.lst
+ if [ "$VMLINUZ" = "vmlinuz26" ]; then
+ echo "initrd $subdir/kernel26-fallback.img" >>/boot/grub/menu.lst
+ fi
+ echo "" >>/boot/grub/menu.lst
+ fi
+ fi
+
+ echo "Installing the GRUB bootloader..."
+ cp -a /usr/lib/grub/i386-pc/* /boot/grub/
+ sync
+ # freeze xfs filesystems to enable grub installation on xfs filesystems
+ if [ -x /usr/sbin/xfs_freeze ]; then
+ /usr/sbin/xfs_freeze -f /boot > /dev/null 2>&1
+ /usr/sbin/xfs_freeze -f / > /dev/null 2>&1
+ fi
+ # look for a separately-mounted /boot partition
+ bootpart=$(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
+ /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
+ /usr/sbin/xfs_freeze -u /boot > /dev/null 2>&1
+ /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 \ No newline at end of file