Merge remote-tracking branch 'origin/github/pr/14'

[grml-rescueboot.git] / 42_grml

diff --git a/42_grml b/42_grml
index 8cfdb3f..d84d169 100755 (executable)
--- a/42_grml
+++ b/42_grml
@@ -74,10 +74,17 @@ get_dependencies() {
     break
   done
   echo $dependencies
-
 }
 
-
+get_iso_identifier() {
+  local iso="$1"
+  local id=
+  if isoinfo --version >/dev/null 2>&1 ; then
+    id=$(isoinfo -d -i "${iso}" | grep '^Volume id:' | sed -e 's/^[^:]*: *//')
+    [ -n "${id}" ] || id=$(isoinfo -d -i "${iso}" | grep '^Application id:' | sed -e 's/^[^:]*: *//')
+  fi
+  echo "${id}"
+}
 
 iso_list=""
 for file in "${ISO_LOCATION}"/*.iso ; do
@@ -86,8 +93,15 @@ for file in "${ISO_LOCATION}"/*.iso ; do
      fi
 done
 
+indent='        '
+submenu_indent=
+if [ -n "${GRUB_SUBMENU}" ] && [ -n "${iso_list}" ] ; then
+  echo "submenu \"${GRUB_SUBMENU}\" \$menuentry_id_option \"grml-rescueboot\" {"
+  submenu_indent="${indent}"
+fi
+
 for grmliso in $iso_list ; do
-  rel_dirname="$(make_system_path_relative_to_its_root $(dirname $grmliso))"
+  rel_dirname="$(dirname $(make_system_path_relative_to_its_root $grmliso))"
   grml="$(basename $grmliso)"
   device="$(${grub_probe} -t device ${grmliso})"
 
@@ -98,6 +112,11 @@ for grmliso in $iso_list ; do
       dependencies=$(get_dependencies ${device})
       dep_string=""
       for dep in $dependencies $device ; do
+        case "$dep" in
+          /dev/md*)
+          md_name="$(mdadm --detail --export "$dep" | sed -ne 's/MD_NAME=//p')"
+          dep="/dev/md/$md_name"
+        esac
         dep_string="$dep_string,$dep"
       done
       dep_string=${dep_string#,}
@@ -106,21 +125,32 @@ for grmliso in $iso_list ; do
   esac
 
   echo "Found Grml ISO image: $grmliso" >&2
-  title="Grml Rescue System ($grml)"
+  iso_id=$(get_iso_identifier "${grmliso}")
+  if [ -n "${iso_id}" ] ; then
+    title="${iso_id} (${grml})"
+  else
+    title="Grml Rescue System (${grml})"
+  fi
   grub_prep=$(prepare_grub_to_access_device "$device" | sed -e "s/^/        /")
 
-  cat << EOF
+  sed -e "s/^/${submenu_indent}/" << EOF
 menuentry "${title}" {
 ${grub_prep}
-        iso_path="${rel_dirname}/${grml}"
+        iso_path="${rel_dirname%/}/${grml}"
         export iso_path
         kernelopts=" $CUSTOM_BOOTOPTIONS $additional_param "
         export kernelopts
-        loopback loop "${rel_dirname}/$grml"
+        # support booting recent GRUB versions on UEFI systems
+        rmmod tpm
+        loopback loop "${rel_dirname%/}/$grml"
         set root=(loop)
         configfile /boot/grub/loopback.cfg
 }
 EOF
 done
 
+if [ -n "${GRUB_SUBMENU}" ] && [ -n "${iso_list}" ] ; then
+  echo "} # end submenu \"${GRUB_SUBMENU}\""
+fi
+
 ## END OF FILE #################################################################