counting on dpkg --print-architecture to filter out architecture post…

…fix from package name. (dell#47)

Signed-off-by: Alex Tu <alex.tu@canonical.com>

late/scripts/chroot.sh

@@ -146,7 +146,7 @@ fi
 #check the packages installed or not
 if [ -f "$TARGET/tmp/apt-installed" ]; then
     mv $TARGET/tmp/apt-installed $TARGET/var/lib/ubiquity/dell-apt
-    sed 's/:amd64//g' $TARGET/var/lib/ubiquity/installed-packages > $TARGET/var/lib/ubiquity/installed-packages-filtered
+    sed "s/:$(dpkg --print-architecture)//g" $TARGET/var/lib/ubiquity/installed-packages > $TARGET/var/lib/ubiquity/installed-packages-filtered
     grep -x -f $TARGET/var/lib/ubiquity/dell-apt $TARGET/var/lib/ubiquity/installed-packages-filtered > $TARGET/var/lib/ubiquity/dell_installed
     awk '{print $0}' $TARGET/var/lib/ubiquity/dell-apt $TARGET/var/lib/ubiquity/dell_installed |sort |uniq -u > $TARGET/var/lib/ubiquity/dell_uninstalled
 fi