4wk: ajusting the documentation - see #1053 and #1054

Author: root

book/01-introduction/sections/installing.asc

@@ -95,6 +95,21 @@ $ sudo dnf install asciidoc xmlto docbook2X getopt
 $ sudo apt-get install asciidoc xmlto docbook2x getopt
 ----
 
+If you're using a Debian-based distribution (Debian/Ubuntu/Ubuntu-derivatives), you also need the `install-info` package:
+
+[source,console]
+----
+$ sudo apt-get install install-info
+----
+
+If you're using a RPM-based distribution (Fedora/RHEL/RHEL-derivatives), you also need the `getopt` package (which is already installed on a Debian-based distro):
+
+[source,console]
+----
+$ sudo dnf install getopt
+$ sudo apt-get install getopt
+----
+
 Additionally, if you're using Fedora/RHEL/RHEL-derivatives, you need to do this
 
 [source,console]