1 files changed, 130 insertions, 0 deletions
diff --git a/42_openbsd b/42_openbsd
new file mode 100755
index 000000000000..7e857ab4800e
--- /dev/null
+++ b/42_openbsd
@@ -0,0 +1,130 @@
+#!/bin/sh
+# Filename:      42_openbsd
+# Purpose:       grub-mkconfig helper script for OpenBSD rescue systems
+# Authors:       Grml team (grml.org), (c) Andreas Gredler <jimmy@grml.org>, Michael Prokop <mika@grml.org>
+#                Original creators
+# Authors:       Thiago Perrotta <perrotta dot thiago at poli dot ufrj dot br>
+#                Modified to make it work with OpenBSD
+# License:       This file is licensed under the GPL v2+.
+################################################################################
+
+set -e
+
+prefix=/usr
+exec_prefix=${prefix}
+bindir=${exec_prefix}/bin
+libdir=${exec_prefix}/lib
+
+if [ -r ${libdir}/grub/grub-mkconfig_lib ] ; then
+  . ${libdir}/grub/grub-mkconfig_lib
+elif [ -r /usr/share/grub/grub-mkconfig_lib ] ; then # fallback for e.g. Fedora
+  . /usr/share/grub/grub-mkconfig_lib
+else
+  echo "Could not locate file grub-mkconfig_lib, please report a bug." >&2
+fi
+
+# default unless configured otherwise:
+ISO_LOCATION="/boot/openbsd"
+
+if [ -r /etc/default/openbsd-rescueboot ] ; then
+  . /etc/default/openbsd-rescueboot
+fi
+
+resolve_dm_name() {
+  retval="$1"
+  base=${1##*/}
+  for block in /sys/block /sys/class/block ; do
+    [ ! -d ${block}/${base}/dm ] && continue
+    retval="/dev/mapper/$(cat ${block}/${base}/dm/name)"
+    break
+  done
+  case "$retval" in
+    /dev/dm-*)
+    minor=${retval##*-}
+   retval="/dev/mapper/$(dmsetup info -C --noheadings -o name -j 253 -m $minor)"
+    ;;
+  esac
+
+  echo "$retval"
+}
+
+get_dependencies() {
+  device=${1}
+  if [ -z ${device} ] ; then
+    return
+  fi
+  device=$(readlink -f ${device})
+  case "$device" in
+    /dev/mapper/*)
+    device="/dev/dm-$(dmsetup info -C --noheadings -o minor "$device")"
+    ;;
+  esac
+
+  base=${device##*/}
+  dependencies=""
+  additional_dependencies=""
+  for block in /sys/block /sys/class/block ; do
+    [ ! -d ${block}/${base}/slaves ] && continue
+    for file in  ${block}/${base}/slaves/* ; do
+      dep_name="/dev/${file##*/}"
+      dep_name=$(resolve_dm_name ${dep_name})
+
+      # resolve recursively all dependencies
+      additional_dependencies=$(get_dependencies ${dep_name})
+
+      dependencies="$dependencies $additional_dependencies $dep_name"
+    done
+    break
+  done
+  echo $dependencies
+
+}
+
+
+
+iso_list=""
+for file in "${ISO_LOCATION}"/*.iso ; do
+     if grub_file_is_not_garbage "$file" ; then
+       iso_list="$iso_list $file "
+     fi
+done
+
+for openbsdiso in $iso_list ; do
+  rel_dirname="$(make_system_path_relative_to_its_root $(dirname $openbsdiso))"
+  openbsd="$(basename $openbsdiso)"
+  device="$(${grub_probe} -t device ${openbsdiso})"
+
+  additional_param=""
+
+  case "$device" in
+    /dev/mapper*|/dev/md*)
+      dependencies=$(get_dependencies ${device})
+      dep_string=""
+      for dep in $dependencies $device ; do
+        dep_string="$dep_string,$dep"
+      done
+      dep_string=${dep_string#,}
+      additional_param="live-media=$dep_string"
+    ;;
+  esac
+
+  echo "Found OpenBSD ISO image: $openbsdiso" >&2
+  title="OpenBSD Rescue System ($openbsd)"
+  grub_prep=$(prepare_grub_to_access_device "$device" | sed -e "s/^/        /")
+
+  cat << EOF
+menuentry "${title}" {
+${grub_prep}
+        iso_path="${rel_dirname}/${openbsd}"
+        export iso_path
+        kernelopts=" $CUSTOM_BOOTOPTIONS $additional_param "
+        export kernelopts
+        loopback loop "${rel_dirname}/$openbsd"
+        set root=(loop)
+        configfile /boot/grub/loopback.cfg
+        kopenbsd /<version_string>/amd64/bsd.rd
+}
+EOF
+done
+
+## END OF FILE #################################################################