diff --git a/Building/Linux/copyright b/Building/Linux/copyright
new file mode 100644
index 00000000..e9356d11
--- /dev/null
+++ b/Building/Linux/copyright
@@ -0,0 +1,28 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: OSCAR
+
+Files: *
+Copyright: 2011-2018 Mark Watkins
+           2019-2020 The OSCAR Team
+License: GPL-3+
+ This program is free software; you can redistribute it
+ and/or modify it under the terms of the GNU General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later
+ version.
+ .
+ This program is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied
+ warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE.  See the GNU General Public License for more
+ details.
+ .
+ You should have received a copy of the GNU General Public
+ License along with this package; if not, write to the Free
+ Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ Boston, MA  02110-1301 USA
+ .
+ On Debian systems, the full text of the GNU General Public
+ License version 3 can be found in the file
+ `/usr/share/common-licenses/GPL-3'.
+
diff --git a/Building/Linux/mkDistDeb.sh b/Building/Linux/mkDistDeb.sh
index c0417773..c5efed59 100755
--- a/Building/Linux/mkDistDeb.sh
+++ b/Building/Linux/mkDistDeb.sh
@@ -36,11 +36,13 @@ echo Version: ${VERSION}
 
 # application name
 appli_name="OSCAR"
+package_name="oscar"
 pre_inst="tst_user.sh"
 # build folder (absolute path is better)
 build_folder="/home/$USER/OSCAR/build"
 if [[ -n ${PRERELEASE}  && -z ${RC} ]] ; then
     appli_name=${appli_name}-test
+    package_name=${package_name}-test
     post_inst="ln_usrbin-test.sh"
     pre_rem="rm_usrbin-test.sh"
     post_rem="clean_rm-test.sh"
@@ -98,7 +100,7 @@ mkdir ${temp_folder}/bin
 mkdir ${temp_folder}/share
 mkdir ${temp_folder}/share/${appli_name}
 mkdir ${temp_folder}/share/doc
-share_doc_folder="${temp_folder}/share/doc/${appli_name}"
+share_doc_folder="${temp_folder}/share/doc/${package_name}"
 mkdir ${share_doc_folder}
 mkdir ${temp_folder}/share/icons
 mkdir ${temp_folder}/share/icons/hicolor
@@ -121,22 +123,29 @@ cp ./${appli_name}.png ${temp_folder}/share/icons/hicolor/48x48/apps/${appli_nam
 cp ./${appli_name}.svg ${temp_folder}/share/icons/hicolor/scalable/apps/${appli_name}.svg
 cp ./${appli_name}.desktop ${temp_folder}/share/applications/${appli_name}.desktop
 
-echo "Copyright 2019-2020 oscar-team.org <oscar@oscar-team.org>" > $share_doc_folder/copyright
+#echo "Copyright 2019-2020 oscar-team.org <oscar@oscar-team.org>" > $share_doc_folder/copyright
+#echo "Licensed under /usr/share/common-licenses/GPL-3" >> $share_doc_folder/copyright
+cp ./copyright $share_doc_folder/copyright
 
-changelog_file="$share_doc_folder/changelog"
+changelog_file="./changelog"
 
 #automatic changelog as a bad name
 # need to generate one and say fpm to use it instead of create one
 # it seems that it needs both of them...
 
-# creation of the changelog.Debian.gz
+# creation of the Debian changelog
 echo "$appli_name (${VERSION}-${ITERATION}) whatever; urgency=medium" > $changelog_file
 echo "" >> $changelog_file
 echo "  * Package created with FPM." >> $changelog_file
 echo "" >> $changelog_file
-echo " -- oscar-team.org <oscar@oscar-team.org>" >> $changelog_file
-gzip --best $changelog_file
-description='Open Source CPAP Analysis Reporter\n<extended description needed to be filled with the right value>'
+echo "  * See the Release Notes under Help/About menu" >> $changelog_file
+echo "" >> $changelog_file
+echo -n " -- oscar-team.org <oscar@oscar-team.org> " >> $changelog_file
+date -Iminutes >> $changelog_file
+cp $changelog_file $share_doc_folder/changelog
+gzip --best $share_doc_folder/changelog
+
+description='Open Source CPAP Analysis Reporter\nProvides graphical and statistical display of the CPAP stored data'
 # trick for dummies : need to use echo -e to take care of \n (cariage return to slip description and extra one
 description=$(echo -e $description)
 
@@ -154,7 +163,6 @@ fpm --input-type dir --output-type deb  \
     --category misc               \
     --deb-priority optional \
     --maintainer " -- oscar-team.org <oscar@oscar-team.org>"   \
-    --license GPL-v3                \
     --vendor oscar-team.org    \
     --description "$description" \
     --url https://sleepfiles.com/OSCAR  \
@@ -162,7 +170,7 @@ fpm --input-type dir --output-type deb  \
     --depends $dblPkg \
     --depends libpcre16-3 \
     --depends qttranslations5-l10n \
-    --depends "libqt5core5a > $qtver"   \
+    --depends "libqt5core5a > 5.9"   \
     --depends libqt5serialport5     \
     --depends libqt5xml5            \
     --depends libqt5network5        \
diff --git a/Building/Linux/rm_usrbin-test.sh b/Building/Linux/rm_usrbin-test.sh
index 4bc6f24a..dd1b3549 100755
--- a/Building/Linux/rm_usrbin-test.sh
+++ b/Building/Linux/rm_usrbin-test.sh
@@ -37,6 +37,4 @@ if [ -f "$file" ]; then
     rm $file
 fi
 
-if [ -x /usr/bin/update-menus ]; then update-menus; fi
-
 
diff --git a/Building/Linux/rm_usrbin.sh b/Building/Linux/rm_usrbin.sh
index cbaaae73..2f84eb87 100755
--- a/Building/Linux/rm_usrbin.sh
+++ b/Building/Linux/rm_usrbin.sh
@@ -90,6 +90,5 @@ if [ -f "$file" ]; then
     rm $file
 fi
 
-if [ -x /usr/bin/update-menus ]; then update-menus; fi
 
 
diff --git a/Building/Linux/tst_user.sh b/Building/Linux/tst_user.sh
index 85a47110..0f32210b 100755
--- a/Building/Linux/tst_user.sh
+++ b/Building/Linux/tst_user.sh
@@ -1,10 +1,10 @@
 #! /bin/bash
-#set -e
+set -e
 #
 #test USER (must be root) vs SUDO_USER (must be other than root but not empty)
-#if [ "$USER" != "root" ] || [ "$SUDO_USER" = "root" ] || [ -z "$SUDO_USER" ]; then
-#    echo "dpkg -i must be launched as normal user with sudo command. fatal error"
-#    exit
-#fi
+if [ "$USER" != "root" ] || [ "$SUDO_USER" = "root" ] || [ -z "$SUDO_USER" ]; then
+    echo "Installation must be done as normal user with sudo command. fatal error"
+    exit
+fi
 #    do nothing