Index: scripts/_variables_
===================================================================
diff -u -r33ce323edd28935192fdb15010fd51eaa610aa58 -r5c634095d571c4d74101171c767f7d4a042f9f9a
--- scripts/_variables_	(.../_variables_)	(revision 33ce323edd28935192fdb15010fd51eaa610aa58)
+++ scripts/_variables_	(.../_variables_)	(revision 5c634095d571c4d74101171c767f7d4a042f9f9a)
@@ -28,4 +28,20 @@
 # sources
 
 # variables
+TRUE=1
+FALSE=0
+COMMENT_DASH="--------------------------------------------------------------------------------"
+
+## Brightness
 BRIGHTNESS_SYSFS="/sys/class/backlight/lvds_backlight/brightness"
+
+## SD-Card
+SDCARD_DEV=/dev/mmcblk1
+SDCARD_PRT=/dev/mmcblk1p1
+SDCARD_MNT=/media/sd-card
+SDCARD_TYP_NAME=ext4
+SDCARD_TYP_NUMB=83
+
+CMD_SDCARD_DEV="ls $SDCARD_DEV"
+CMD_SDCARD_PRT="ls $SDCARD_PRT"
+CMD_LINUX_TYPE="sfdisk --part-type $SDCARD_DEV 1"