diff --git a/common/dialog.sh b/common/dialog.sh
index 0cb3890c..44f78c41 100644
--- a/common/dialog.sh
+++ b/common/dialog.sh
@@ -37,8 +37,7 @@ ask_list()
 	local M_DEFAULT
 	eval M_DEFAULT="\$$1"
 	local M_ALL=$M_DEFAULT
-	local M=""
-	local m
+	local M="" m
 	
 	[ -n "$3" ] && { find_str_in_list "$M_DEFAULT" "$2" || M_DEFAULT="$3" ;}
 	
@@ -54,5 +53,5 @@ ask_list()
 	echo selected : $M
 	eval $1="\"$M\""
 	
-	[ "$M" != "$M_OLD" ]
+	[ "$M" != "$M_DEFAULT" ]
 }
diff --git a/common/installer.sh b/common/installer.sh
index 36aed86e..453a70ad 100644
--- a/common/installer.sh
+++ b/common/installer.sh
@@ -256,7 +256,7 @@ check_system()
 
 get_free_space_mb()
 {
-    df -m $PWD | awk '/[0-9]%/{print $(NF-2)}'
+    df -m "$1" | awk '/[0-9]%/{print $(NF-2)}'
 }
 get_ram_kb()
 {
diff --git a/install_easy.sh b/install_easy.sh
index 216cce0c..f35e977a 100755
--- a/install_easy.sh
+++ b/install_easy.sh
@@ -323,7 +323,7 @@ ask_config_tmpdir()
 		echo /tmp in openwrt is tmpfs. on low RAM systems there may be not enough RAM to store downloaded files
 		echo default tmpfs has size of 50% RAM
 		echo "RAM  : $(get_ram_mb) Mb"
-		echo "DISK : $(get_free_space_mb) Mb"
+		echo "DISK : $(get_free_space_mb "$EXEDIR/tmp") Mb"
 		echo select temp file location
 		[ -z "$TMPDIR" ] && TMPDIR=/tmp
 		ask_list TMPDIR "/tmp $EXEDIR/tmp" && {