diff -urN fsarchiver-0.6.1-a/src/archive.c fsarchiver-0.6.1-b/src/archive.c
--- fsarchiver-0.6.1-a/src/archive.c	2009-10-04 09:45:19.000000000 +0100
+++ fsarchiver-0.6.1-b/src/archive.c	2010-02-20 21:45:42.000000000 +0000
@@ -46,7 +46,6 @@
 	ai->complevel=-1;
 	ai->archfd=-1;
 	ai->archid=0;
-	ai->locked=false;
 	ai->curvol=0;
 	return 0;
 }
@@ -92,13 +91,6 @@
 	
 	ai->createdbyfsa=true;
 	
-	if (lockf(ai->archfd, F_LOCK, 0)!=0)
-	{	sysprintf("Cannot lock archive file: %s\n", ai->volpath);
-		close(ai->archfd);
-		return -1;
-	}
-	ai->locked=true;
-	
 	return 0;
 }
 
@@ -139,8 +131,6 @@
 		return -1;
 	}
 	
-	if (ai->locked)
-		res=lockf(ai->archfd, F_ULOCK, 0);
 	fsync(ai->archfd); // just in case the user reboots after it exits
 	close(ai->archfd);
 	ai->archfd=-1;
diff -urN fsarchiver-0.6.1-a/src/archive.h fsarchiver-0.6.1-b/src/archive.h
--- fsarchiver-0.6.1-a/src/archive.h	2009-10-04 09:45:19.000000000 +0100
+++ fsarchiver-0.6.1-b/src/archive.h	2010-02-20 21:45:46.000000000 +0000
@@ -27,7 +27,6 @@
 	int	archfd; // file descriptor of the current volume (set to -1 when closed)
 	u32	archid; // 32bit archive id for checking (random number generated at creation)
 	u64	fscount; // how many filesystems in archive (valid only if archtype=filesystems)
-	int	locked; // true if the file is locked by the open/create/close functions
 	u32	archtype; // what has been saved in the archive: filesystems or directories
 	u32	curvol; // current volume number, starts at 0, incremented when we change the volume
 	u32	compalgo; // compression algorithm which has been used to create the archive