diff --git a/Makefile b/Makefile
index 69fa935..7b18303 100644
--- a/Makefile
+++ b/Makefile
@@ -54,12 +54,17 @@ image:
 iso:
 	mkdir -p tmp
 	mkdir -p katauos
+	mkdir -p katauos/katau/
 	sudo mount rootfs.iso9660 tmp/
 	sudo cp -R tmp/* katauos/
 	sudo chown -R kali:kali katauos/
 	cp katauos.bin grubshit/boot
 	cp katauos.bin katauos/boot/
 	cp grubshit/boot/grub/grub.cfg katauos/boot/grub/grub.cfg
+
+	cp grubshit/caller katauos/katau/caller
+	cp grubshit/callee katauos/katau/callee
+
 	sudo umount tmp/
 	grub-mkrescue -o boot.iso katauos/
 
diff --git a/include/exec_from_file.h b/include/exec_from_file.h
index f7d07af..56950f1 100644
--- a/include/exec_from_file.h
+++ b/include/exec_from_file.h
@@ -9,4 +9,4 @@
 #define USER_STACK_SIZE         0x4000         // 16KB stack (4 pages)
 #define USER_STACK_BOTTOM     (USER_STACK_TOP - USER_STACK_SIZE)
 
-void exec_from_file(const char* filename, const char* dirname);
\ No newline at end of file
+void exec_from_file(l9660_file* fs_file, const char* dirname);
\ No newline at end of file
diff --git a/src/kernel/kernel.c b/src/kernel/kernel.c
index fcd0047..a213cbb 100644
--- a/src/kernel/kernel.c
+++ b/src/kernel/kernel.c
@@ -135,17 +135,8 @@ void kmain(unsigned int magic, unsigned int info)
 	l9660_file* file = (l9660_file*)malloc(sizeof(l9660_file));
 
 	follow_path("/bin/bash.", file, dir);
-	
-	//////////////
-	l9660_seek(file, L9660_SEEK_END, 0);
-    uint32_t file_size = l9660_tell(file);
-    debug_log("file_size: %X\n", file_size);
-    l9660_seek(file, L9660_SEEK_SET, 0);
-	free(file);
-	free(dir);
-	//////////////
 
-	exec_from_file("caller.", ".");
+	exec_from_file(file, ".");
 
 	while(1)
 	{
diff --git a/src/tasking/exec_from_file.c b/src/tasking/exec_from_file.c
index 5cc067a..c3be57d 100644
--- a/src/tasking/exec_from_file.c
+++ b/src/tasking/exec_from_file.c
@@ -6,7 +6,7 @@
 #include "../include/paging.h"
 #include "../include/task.h"
 
-void exec_from_file(const char* filename, const char* dirname)
+void exec_from_file(l9660_file* fs_file, const char* dirname)
 {
     asm volatile("cli");
     int err;
@@ -22,13 +22,21 @@ void exec_from_file(const char* filename, const char* dirname)
 
     uint32_t bss_start, bss_end;
 
-    err = vsf_read_file_by_path(filename, &file, &dir);
+    l9660_seek(fs_file, L9660_SEEK_END, 0);
+    uint32_t file_size = l9660_tell(fs_file);
+    debug_log("[exec_from_file] file_size: %X\n", file_size);
+    l9660_seek(fs_file, L9660_SEEK_SET, 0);
 
-    if(err != 0)
+    file = (uint8_t*)malloc(file_size);
+
+    //err = vsf_read_file_by_path(filename, &file, &dir);
+    err = vfs_read_file(fs_file, file);
+
+    /*if(err != 0)
     {
-        debug_log("read_file failed!\n");
         return;
     }
+    */
     //debug_log("result: %X\n", result);
     //debug_log("buffer: %s\n", file);