1 files changed, 34 insertions, 0 deletions
diff --git a/release/INSTALL-GRUB-MBR b/release/INSTALL-GRUB-MBR
new file mode 100644
index 00000000..1a5f694c
--- /dev/null
+++ b/release/INSTALL-GRUB-MBR
@@ -0,0 +1,34 @@
+#!/bin/bash
+# Install grub stage1 as the MBR, copying the dos partition table from the
+# existing MBR.
+
+DEV="$1"
+
+if [ ! "$DEV" -o ! -w "$DEV" ]; then
+  echo 2>&1 "Usage: $0 DEVICE"
+  exit 1
+fi
+
+case "$DEV" in)
+  *r?d[0-9])
+    ;;
+  *)
+    echo "The device $DEV doesn't seem to be a whole-disk raw device; continue? [n] "
+    read C
+    case "$C" in)
+      [Yy]*)
+        ;;
+      *)
+        echo 2>&1 "$0: Aborting";
+	exit 2
+	;;
+    esac
+    ;;
+esac
+
+cd /tmp
+
+dd if="$DEV" of=mbr							 \
+&& cp /boot/grub/stage1_ffs stage1					 \
+&& dd if=mbr of=stage1 conv=notrunc bs=1 seek=446 skip=446 count=64	 \
+&& dd if=stage1 of="$DEV" bs=512 count=1