diff --git a/weed/command/mount_std.go b/weed/command/mount_std.go
index 9df43e40a..2474cf7dd 100644
--- a/weed/command/mount_std.go
+++ b/weed/command/mount_std.go
@@ -167,6 +167,9 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 	if *option.nonempty {
 		options = append(options, fuse.AllowNonEmptyMount())
 	}
+	if *option.readOnly {
+		options = append(options, fuse.ReadOnly())
+	}
 
 	// find mount point
 	mountRoot := filerMountRootPath
@@ -200,7 +203,6 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		VolumeServerAccess: *mountOptions.volumeServerAccess,
 		Cipher:             cipher,
 		UidGidMapper:       uidGidMapper,
-		ReadOnly:           *option.readOnly,
 	})
 
 	// mount
diff --git a/weed/filesys/dir.go b/weed/filesys/dir.go
index f177c940b..9eba4066d 100644
--- a/weed/filesys/dir.go
+++ b/weed/filesys/dir.go
@@ -128,10 +128,6 @@ func (dir *Dir) newDirectory(fullpath util.FullPath) fs.Node {
 func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
 	resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) {
 
-	if dir.wfs.option.ReadOnly {
-		return nil, nil, fuse.EPERM
-	}
-
 	request, err := dir.doCreateEntry(req.Name, req.Mode, req.Uid, req.Gid, req.Flags&fuse.OpenExclusive != 0)
 
 	if err != nil {
@@ -152,10 +148,6 @@ func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
 
 func (dir *Dir) Mknod(ctx context.Context, req *fuse.MknodRequest) (fs.Node, error) {
 
-	if dir.wfs.option.ReadOnly {
-		return nil, fuse.EPERM
-	}
-
 	_, err := dir.doCreateEntry(req.Name, req.Mode, req.Uid, req.Gid, false)
 
 	if err != nil {
@@ -214,10 +206,6 @@ func (dir *Dir) doCreateEntry(name string, mode os.FileMode, uid, gid uint32, ex
 
 func (dir *Dir) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {
 
-	if dir.wfs.option.ReadOnly {
-		return nil, fuse.EPERM
-	}
-
 	glog.V(4).Infof("mkdir %s: %s", dir.FullPath(), req.Name)
 
 	newEntry := &filer_pb.Entry{
@@ -376,10 +364,6 @@ func findFileType(mode uint16) fuse.DirentType {
 
 func (dir *Dir) Remove(ctx context.Context, req *fuse.RemoveRequest) error {
 
-	if dir.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	if !req.Dir {
 		return dir.removeOneFile(req)
 	}
@@ -455,10 +439,6 @@ func (dir *Dir) removeFolder(req *fuse.RemoveRequest) error {
 
 func (dir *Dir) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
 
-	if dir.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("%v dir setattr %+v", dir.FullPath(), req)
 
 	entry, err := dir.maybeLoadEntry()
@@ -488,10 +468,6 @@ func (dir *Dir) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fus
 
 func (dir *Dir) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error {
 
-	if dir.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("dir Setxattr %s: %s", dir.FullPath(), req.Name)
 
 	entry, err := dir.maybeLoadEntry()
@@ -509,10 +485,6 @@ func (dir *Dir) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error {
 
 func (dir *Dir) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error {
 
-	if dir.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("dir Removexattr %s: %s", dir.FullPath(), req.Name)
 
 	entry, err := dir.maybeLoadEntry()
diff --git a/weed/filesys/dir_link.go b/weed/filesys/dir_link.go
index de330e7a4..acdcd2de4 100644
--- a/weed/filesys/dir_link.go
+++ b/weed/filesys/dir_link.go
@@ -24,10 +24,6 @@ const (
 
 func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (fs.Node, error) {
 
-	if dir.wfs.option.ReadOnly {
-		return nil, fuse.EPERM
-	}
-
 	oldFile, ok := old.(*File)
 	if !ok {
 		glog.Errorf("old node is not a file: %+v", old)
@@ -106,10 +102,6 @@ func (dir *Dir) Link(ctx context.Context, req *fuse.LinkRequest, old fs.Node) (f
 
 func (dir *Dir) Symlink(ctx context.Context, req *fuse.SymlinkRequest) (fs.Node, error) {
 
-	if dir.wfs.option.ReadOnly {
-		return nil, fuse.EPERM
-	}
-
 	glog.V(4).Infof("Symlink: %v/%v to %v", dir.FullPath(), req.NewName, req.Target)
 
 	request := &filer_pb.CreateEntryRequest{
diff --git a/weed/filesys/dir_rename.go b/weed/filesys/dir_rename.go
index 28316c3bd..d2acad4b2 100644
--- a/weed/filesys/dir_rename.go
+++ b/weed/filesys/dir_rename.go
@@ -13,10 +13,6 @@ import (
 
 func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirectory fs.Node) error {
 
-	if dir.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	newDir := newDirectory.(*Dir)
 
 	newPath := util.NewFullPath(newDir.FullPath(), req.NewName)
diff --git a/weed/filesys/file.go b/weed/filesys/file.go
index 00a5ac279..2a991d7db 100644
--- a/weed/filesys/file.go
+++ b/weed/filesys/file.go
@@ -105,10 +105,6 @@ func (file *File) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.Op
 
 func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
 
-	if file.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("%v file setattr %+v", file.fullpath(), req)
 
 	entry, err := file.maybeLoadEntry(ctx)
@@ -197,10 +193,6 @@ func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *f
 
 func (file *File) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error {
 
-	if file.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("file Setxattr %s: %s", file.fullpath(), req.Name)
 
 	entry, err := file.maybeLoadEntry(ctx)
@@ -218,10 +210,6 @@ func (file *File) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error
 
 func (file *File) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error {
 
-	if file.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	glog.V(4).Infof("file Removexattr %s: %s", file.fullpath(), req.Name)
 
 	entry, err := file.maybeLoadEntry(ctx)
diff --git a/weed/filesys/filehandle.go b/weed/filesys/filehandle.go
index 240d25a3d..5b9a1748a 100644
--- a/weed/filesys/filehandle.go
+++ b/weed/filesys/filehandle.go
@@ -156,10 +156,6 @@ func (fh *FileHandle) readFromChunks(buff []byte, offset int64) (int64, error) {
 // Write to the file handle
 func (fh *FileHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
 
-	if fh.f.wfs.option.ReadOnly {
-		return fuse.EPERM
-	}
-
 	fh.Lock()
 	defer fh.Unlock()
 
diff --git a/weed/filesys/wfs.go b/weed/filesys/wfs.go
index 7bacfb114..2034354f5 100644
--- a/weed/filesys/wfs.go
+++ b/weed/filesys/wfs.go
@@ -42,7 +42,6 @@ type Option struct {
 	CacheSizeMB        int64
 	DataCenter         string
 	Umask              os.FileMode
-	ReadOnly           bool
 
 	MountUid   uint32
 	MountGid   uint32