diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index d5563162b4..901aa9d2f7 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,18 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2010-06-12 14:49 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
+  * mpkg_nightly.sh
+    + Added instructions to setup unattended file upload to sf.net.
+      If SSH key pair is setup and public key uploaded to sf.net
+      user account, nightlies can be created and automatically
+      upload to sf.net, using these commands:
+      ---
+      $ export HB_SFNET_FRS_PRIVATE_KEY=~/.ssh/id_dsa
+      $ export HB_SFNET_USER=myuser
+      $ ./mpkg_nightly.sh
+      ---
+
 2010-06-12 14:11 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
   * src/vm/set.c
     * Reset default value to "hb_out.log".
diff --git a/harbour/mpkg_nightly.sh b/harbour/mpkg_nightly.sh
index bc6343f53b..80275e3062 100755
--- a/harbour/mpkg_nightly.sh
+++ b/harbour/mpkg_nightly.sh
@@ -4,6 +4,45 @@
 # $Id$
 #
 
+# ---------------------------------------------------------------
+# Copyright 2010 Viktor Szakats (harbour.01 syenar.hu)
+# See COPYING for licensing terms.
+# ---------------------------------------------------------------
+
+#
+# HOWTO upload unattended to sourceforge.net
+# ==========================================
+#
+# 1. Generate SSH key pair:
+#
+#    $ ssh-keygen -t dsa -C "$HB_SFNET_USER,harbour-project@frs.sourceforge.net"
+#
+#    where '$HB_SFNET_USER' is your sf.net username.
+#
+#    IMPORTANT: Leave pass-phrase empty
+#
+# 2. Paste content of generated public key file (by default 'id_dsa.pub') into
+#    'Authorized keys' edit box and press 'Update' button on this page:
+#
+#    https://sourceforge.net/account/ssh
+#
+#    You have to be logged in to sf.net.
+#
+# 3. Wait up to 10 minutes for key to be activated
+#
+# 4. Now you can use your private key file (by default 'id_dsa') instead of
+#    password to upload files. To use this script as is, set 'HB_SFNET_FRS_PRIVATE_KEY'
+#    envvar to your private key file and 'HB_SFNET_USER' envvar to your
+#    sf.net username, f.e.:
+#
+#    $ export HB_SFNET_FRS_PRIVATE_KEY=~/.ssh/id_dsa
+#    $ export HB_SFNET_USER=myuser
+#    $ ./mpkg_nightly.sh
+#
+# Official link with more detailed procedures:
+#    http://sourceforge.net/apps/trac/sourceforge/wiki/SSH%20keys
+#
+
 [ -n harbour-nightly-src.zip ] || rm harbour-nightly-src.zip
 [ -n harbour-nightly.tar.bz2 ] || rm harbour-nightly.tar.bz2
 [ -n harbour-nightly.tar.gz ]  || rm harbour-nightly.tar.gz
@@ -26,6 +65,6 @@ zip -X -r -o ../harbour-nightly-src.zip harbour/*
 cd ..
 rm -f -r _mk_nightly
 
-scp harbour-nightly-src.zip $USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/
-scp harbour-nightly.tar.bz2 $USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/
-scp harbour-nightly.tar.gz  $USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/
+scp -i $HB_SFNET_FRS_PRIVATE_KEY harbour-nightly-src.zip $HB_SFNET_USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/
+scp -i $HB_SFNET_FRS_PRIVATE_KEY harbour-nightly.tar.bz2 $HB_SFNET_USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/
+scp -i $HB_SFNET_FRS_PRIVATE_KEY harbour-nightly.tar.gz  $HB_SFNET_USER,harbour-project@frs.sourceforge.net:/home/frs/project/h/ha/harbour-project/source/nightly/