diff --git a/src/sys/ubixfsv2/ubixfs.cpp b/src/sys/ubixfsv2/ubixfs.cpp
index a98fea4..e74c7c5 100644
--- a/src/sys/ubixfsv2/ubixfs.cpp
+++ b/src/sys/ubixfsv2/ubixfs.cpp
@@ -175,7 +175,6 @@
     startingBlock *= (bSize / 512);
     // startingBlock is now in sectors
 
-
     if (runSize >= size) {
       runSize = size;
       size = 0;
@@ -196,6 +195,48 @@
   return totalSize;
 } // UbixFS::vfs_read
 
+size_t
+UbixFS::vfs_write(fileDescriptor * fd, void * data, off_t offset, size_t size) {
+
+  unsigned int i;
+  off_t sum, startingBlock;
+  size_t runSize, sectorCount, totalSize, bSize; // blockSize
+  ubixfsInode * inode = NULL;
+
+  if (fd == NULL || data == NULL) return ~0;
+
+  if (size == 0) return 0; // don't fail if size is 0?
+
+  assert(device);
+  assert(superBlock);
+
+  inode = static_cast<ubixfsInode *>(fd->inode);
+
+  assert(inode);
+
+  bSize = superBlock->blockSize;
+
+  totalSize = sum = i = 0;
+
+  return totalSize;
+} // UbixFS::vfs_write
+
+void
+UbixFS::setFreeBlock(blockRun ibr) {
+  signed char * ptr;
+  
+  if (superBlock == NULL || freeBlockList == NULL) return;
+  if (ibr.len == 0) return;
+  ptr = freeBlockList + ((ibr.AG << superBlock->AGShift) >> 3);
+  ptr += ibr.start >> 3;
+
+  if (ibr.start % 8 != 0) {
+    
+    ibr.len -= ibr.start % 8;
+  } // if
+
+} // UbixFS::setFreeBlock
+
 blockRun
 UbixFS::getFreeBlock(blockRun ibr) {
   signed char * ptr;
diff --git a/src/sys/ubixfsv2/ubixfs.h b/src/sys/ubixfsv2/ubixfs.h
index 5d639cd..cf8a12e 100644
--- a/src/sys/ubixfsv2/ubixfs.h
+++ b/src/sys/ubixfsv2/ubixfs.h
@@ -137,6 +137,7 @@
   blockRun         getFreeBlock(uInt32);
   blockRun         getFreeBlock(void);
   blockRun         get8FreeBlocks(uInt32);
+  void             setFreeBlock(blockRun);
   void *           mknod(const char *, ubixfsInode *);
   uInt32           getNextAG(void);
   void             printSuperBlock(void);
@@ -148,6 +149,7 @@
   virtual int      vfs_format(device_t *);
   virtual void *   vfs_mknod(const char *, mode_t);
   virtual size_t   vfs_read(fileDescriptor *, void *, off_t, size_t);
+  virtual size_t   vfs_write(fileDescriptor *, void *, off_t, size_t);
   virtual int      vfs_sync(void);
   virtual int      vfs_stop(void); 
   virtual         ~UbixFS(void);