I passi che ho seguito sono i seguenti:
Ho aperto il terminale e con diritti di amministratore ho digitato il seguente comando:
nano /etc/inittab
e mi si è presentato questo contenuto:
bash-4.1# cat /etc/inittab
#
# inittab This file describes how the INIT process should set up
# the system in a certain run-level.
#
# Version: @(#)inittab 2.04 17/05/93 MvS
# 2.10 02/10/95 PV
# 3.00 02/06/1999 PV
# 4.00 04/10/2002 PV
#
# Author: Miquel van Smoorenburg, <
miquels@drinkel.nl.mugnet.org>
# Modified by: Patrick J. Volkerding, <
volkerdi@slackware.com>
#
# These are the default runlevels in Slackware:
# 0 = halt
# 1 = single user mode
# 2 = unused (but configured the same as runlevel 3)
# 3 = multiuser mode (default Slackware runlevel)
# 4 = X11 with KDM/GDM/XDM (session managers)
# 5 = unused (but configured the same as runlevel 3)
# 6 = reboot
# Default runlevel. (Do not set to 0 or 6)
id:4:initdefault:
# System initialization (runs when system boots).
si:S:sysinit:/etc/rc.d/rc.S
# Script to run when going single user (runlevel 1).
su:1S:wait:/etc/rc.d/rc.K
# Script to run when going multi user.
rc:2345:wait:/etc/rc.d/rc.M
# What to do at the "Three Finger Salute".
ca::ctrlaltdel:/sbin/shutdown -t5 -r now
# Runlevel 0 halts the system.
l0:0:wait:/etc/rc.d/rc.0
# Runlevel 6 reboots the system.
l6:6:wait:/etc/rc.d/rc.6
# What to do when power fails.
pf::powerfail:/sbin/genpowerfail start
# If power is back, cancel the running shutdown.
pg::powerokwait:/sbin/genpowerfail stop
# These are the standard console login getties in multiuser mode:
c1:1235:respawn:/sbin/agetty 38400 tty1 linux
c2:1235:respawn:/sbin/agetty 38400 tty2 linux
c3:1235:respawn:/sbin/agetty 38400 tty3 linux
c4:1235:respawn:/sbin/agetty 38400 tty4 linux
c5:1235:respawn:/sbin/agetty 38400 tty5 linux
c6:12345:respawn:/sbin/agetty 38400 tty6 linux
# Local serial lines:
#s1:12345:respawn:/sbin/agetty -L ttyS0 9600 vt100
#s2:12345:respawn:/sbin/agetty -L ttyS1 9600 vt100
# Dialup lines:
#d1:12345:respawn:/sbin/agetty -mt60 38400,19200,9600,2400,1200 ttyS0 vt100
#d2:12345:respawn:/sbin/agetty -mt60 38400,19200,9600,2400,1200 ttyS1 vt100
# Runlevel 4 used to be for an X window only system, until we discovered
# that it throws init into a loop that keeps your load avg at least 1 all
# the time. Thus, there is now one getty opened on tty6. Hopefully no one
# will notice. ;^)
# It might not be bad to have one text console anyway, in case something
# happens to X.
x1:4:respawn:/etc/rc.d/rc.4
# End of /etc/inittab
bash-4.1#
Ho modificato la stringa:
# Default runlevel. (Do not set to 0 or 6)
id:4:initdefault:
Originariamente il valore del runrevel era 3. L'ho modificata in 4 dimodochè al prossimo riavvio passasse direttamente al gestore grafico senza fermarsi al prompt.
Il secondo step è stato modificare il file
/etc/rc.d/rc.4Dove nel contenuto:
#! /bin/sh
#
# rc.4 This file is executed by init(

when the system is being
# initialized for run level 4 (XDM)
#
# Version: @(#)/etc/rc.d/rc.4 2.00 02/17/93
#
# Author: Fred N. van Kempen, <
waltje@uwalt.nl.mugnet.org>
# At least 47% rewritten by: Patrick J. Volkerding <
volkerdi@slackware.com>
#
# Tell the viewers what's going to happen...
echo "Starting up X11 session manager..."
# Try to use GNOME's gdm session manager. This comes first because if
# gdm is on the machine then the user probably installed it and wants
# to use it by default:
if [ -x /usr/bin/gdm ]; then
exec /usr/bin/gdm -nodaemon
fi
# Someone thought that gdm looked prettier in /usr/sbin,
# so look there, too:
if [ -x /usr/sbin/gdm ]; then
exec /usr/sbin/gdm -nodaemon
fi
# Not there? OK, try to use KDE's kdm session manager:
#if [ -x /opt/kde/bin/kdm ]; then
# exec /opt/kde/bin/kdm -nodaemon
#elif [ -x /usr/bin/kdm ]; then
# exec /usr/bin/kdm -nodaemon
#fi
# If all you have is XDM, I guess it will have to do:
#if [ -x /usr/bin/xdm ]; then
# exec /usr/bin/xdm -nodaemon
#elif [ -x /usr/X11R6/bin/xdm ]; then
# exec /usr/X11R6/bin/xdm -nodaemon
#fi
# error
echo
echo "Hey, you don't have KDM, GDM, or XDM. Can't use runlevel 4 without"
echo "one of those installed."
sleep 30
# All done.
bash-4.1#
Ho inserito un cancelletto, alle voci che non appartenessero a GNOME. Infatti come si può notare, solo le prime stringhe sono rimaste libere:
# Try to use GNOME's gdm session manager. This comes first because if
# gdm is on the machine then the user probably installed it and wants
# to use it by default:
if [ -x /usr/bin/gdm ]; then
exec /usr/bin/gdm -nodaemon
fi]
Ho infine salvato tutto e riavviato, ed il gioco è fatto.

Ho trovato una documentazione inerente a questa casistica al seguente indirizzo:
http://book.slackware.it/x-window-system-xdm.htmlCallejon...