diff --git a/bsp/mini2440/mini2440_ram.ld b/bsp/mini2440/mini2440_ram.ld
index 727e65ea0f38056efdb1ca725219380018e33d87..95856f26888bc16057732c79001d274f38ff1c6a 100644
--- a/bsp/mini2440/mini2440_ram.ld
+++ b/bsp/mini2440/mini2440_ram.ld
@@ -6,10 +6,22 @@ SECTIONS
 	. = 0x30000000;
 
 	. = ALIGN(4);
-	.text :	{
+	.text :	
+	{
 		*(.init)
 		*(.text)
 		*(.gnu.linkonce.t*)
+		
+		/* section information for finsh shell */
+		. = ALIGN(4);
+		__fsymtab_start = .;
+		KEEP(*(FSymTab))
+		__fsymtab_end = .;
+		. = ALIGN(4);
+		__vsymtab_start = .;
+		KEEP(*(VSymTab))
+		__vsymtab_end = .;
+		. = ALIGN(4);	
 	}
 
 	. = ALIGN(4);
diff --git a/bsp/mini2440/rtconfig.py b/bsp/mini2440/rtconfig.py
index 9b1846db741aa85976177eb6dc28a1e90e10d72c..fd9e605ef4a9df165a50cd52e0c44bdbb4b5d453 100644
--- a/bsp/mini2440/rtconfig.py
+++ b/bsp/mini2440/rtconfig.py
@@ -90,9 +90,10 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
+    if RT_USING_FINSH:
+        CFLAGS += ' -D FINSH_USING_SYMTAB -DFINSH_USING_DESCRIPTION'
     if RT_USING_WEBSERVER:
         CFLAGS += ' -DWEBS -DUEMF -DRTT -D__NO_FCNTL=1 -DRT_USING_WEBSERVER'
-
     RT_USING_MINILIBC = True
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
diff --git a/filesystem/dfs/src/dfs_init.c b/filesystem/dfs/src/dfs_init.c
index 7922bd438c08b5a37dfa4c95b44fd665e1383271..2667c7dd88a75d21c59ff7466c3652eac4363049 100644
--- a/filesystem/dfs/src/dfs_init.c
+++ b/filesystem/dfs/src/dfs_init.c
@@ -68,10 +68,6 @@ void dfs_init()
 
 	/* clean fd table */
 	rt_memset(fd_table, 0, sizeof(fd_table));
-
-#if defined(RT_USING_FINSH) && !defined(FINSH_USING_SYMTAB)
-	dfs_export_finsh();
-#endif
 }
 
 void dfs_lock()
diff --git a/filesystem/dfs/src/dfs_raw.c b/filesystem/dfs/src/dfs_raw.c
index e87348572bdd463f407b82d4a539152d6c27ca1a..ec0bce6820334752936737feb9a358db78f18451 100644
--- a/filesystem/dfs/src/dfs_raw.c
+++ b/filesystem/dfs/src/dfs_raw.c
@@ -581,7 +581,7 @@ int dfile_raw_rename(const char* oldpath, const char* newpath)
 static char fullpath[256 + 1];
 static struct dfs_fd fd;
 static struct dfs_dirent dirent;
-void __ls(const char* pathname)
+void ls(const char* pathname)
 {
 	struct dfs_stat stat;
 	int length;
@@ -622,9 +622,9 @@ void __ls(const char* pathname)
 		rt_kprintf("No such directory\n");
 	}
 }
-FINSH_FUNCTION_EXPORT(__ls, list directory contents)
+FINSH_FUNCTION_EXPORT(ls, list directory contents)
 
-void __mkdir(const char* pathname)
+void _mkdir(const char* pathname)
 {
 	/* make a new directory */
 	if (dfile_raw_open(&fd, pathname, DFS_O_DIRECTORY | DFS_O_CREAT) == 0)
@@ -633,18 +633,18 @@ void __mkdir(const char* pathname)
 	}
 	else rt_kprintf("Can't mkdir %s\n", pathname);
 }
-FINSH_FUNCTION_EXPORT(__mkdir, make a directory)
+FINSH_FUNCTION_EXPORT(_mkdir, make a directory)
 
-void __rm(const char* filename)
+void rm(const char* filename)
 {
 	if (dfile_raw_unlink(filename) < 0)
 	{
 		rt_kprintf("Delete %s failed\n", filename);
 	}
 }
-FINSH_FUNCTION_EXPORT(__rm, remove files or directories)
+FINSH_FUNCTION_EXPORT(rm, remove files or directories)
 
-void __cat(const char* filename)
+void cat(const char* filename)
 {
 	rt_uint32_t length;
 	char buffer[81];
@@ -667,15 +667,6 @@ void __cat(const char* filename)
 	
 	dfile_raw_close(&fd);
 }
-FINSH_FUNCTION_EXPORT(__cat, print file)
+FINSH_FUNCTION_EXPORT(cat, print file)
 
-#ifndef FINSH_USING_SYMTAB
-void dfs_export_finsh(void)
-{
-	finsh_syscall_append("ls", (syscall_func)__ls);
-	finsh_syscall_append("mkdir", (syscall_func)__mkdir);
-	finsh_syscall_append("rm", (syscall_func)__rm);
-	finsh_syscall_append("cat", (syscall_func)__cat);
-}
-#endif
 #endif