Handle relative paths before running pkexec

Fixes #1

README.md

@@ -21,6 +21,8 @@ Download latest [portable AppImage version](https://github.com/ValdikSS/windows2
 
 The program prints removable storage list if no arguments supplied.
 
+If you don't want to use AppImage, you'll need to install all dependencies and download [uefi-ntfs.img](https://github.com/pbatard/rufus/tree/master/res/uefi) from Rufus project.
+
 ### BIOS Boot
 
 BIOS Boot (Legacy Boot/UEFI-CSM) uses stock Windows 7 MBR and NTFS bootloader, courtesy of [ms-sys](http://ms-sys.sourceforge.net/) project.

windows2usb

@@ -226,12 +226,16 @@ else
     if [[ "$APPIMAGE" ]];
     then
         scriptpath="$APPIMAGE"
-    fi;
+    fi
+
+    [ -f "$1" ] && PARAM1="$(readlink -f -- "$1")" || PARAM1="$1"
+    [ -f "$2" ] && PARAM2="$(readlink -f -- "$2")" || PARAM2="$2"
+    shift; shift;
 
     privescs=(pkexec sudo)
     for privesc in ${privescs[*]}; do
         if command -v "$privesc" > /dev/null; then
-            "$privesc" "$scriptpath" "$@"
+            "$privesc" "$scriptpath" "$PARAM1" "$PARAM2" "$@"
             exit
         fi
     done