Implemented media detection

config/grub/config/grub.cfg

@@ -40,6 +40,46 @@ if [ -f (cbfsdisk)/keymap.gkb ]; then
 	keymap (cbfsdisk)/keymap.gkb
 fi
 
+# Default enums for non detectable medias. Override as you like, eventually.
+set partnums="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20"
+set medianums="20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0"
+
+# Loads into a variable all the medias from *
+function mediadetect {
+	  unset media_devlist
+	  set media_devlist=*
+}
+
+# Fills a variable containing possible partition list from a specified and previously detected media kind
+function enum_tgt {
+	  unset tgt_medias
+	  for media_item in ${media_devlist}; do
+		for device_kind in ${1}; do
+				for num in $medianums; do
+				# If media number is an existent detected media
+					  if [ $media_item == "($device_kind$num)" ]; then
+					# Add raw media
+						tgt_medias="${tgt_medias} (${device_kind}${num})"
+					# Add every possible partition
+						for part in ${partnums}; do
+								tgt_medias="${tgt_medias} (${device_kind}${num},${part})"
+						done
+					  fi
+				done
+		done
+	  done
+	  echo $tgt_medias
+}
+
+mediadetect
+
+menuentry "Media detection test" {
+enum_tgt ata
+enum_tgt ahci
+set pager=1
+read
+}
+
 function try_user_grub_config {
 	set root="${1}"
 	# The @/... entries are for cases where the BTRFS filesystem is being used