Problems After Installation; Problems With The X Window System (Gui); Remote Graphical Desktops And Xdmcp - Red Hat ENTERPRISE LINUX 3 - INSTALLATION GUIDE FOR IBM S-390 AND IBM ESERVER ZSERIES Installation Manual

Appendix D. Troubleshooting Your Installation of Red Hat Enterprise Linux 41
If you experience such an error, first try to download any available errata for anaconda. Errata can be
found at:
http://www.redhat.com/support/errata/
The anaconda website may also be a useful reference and can be found online at:
http://rhlinux.redhat.com/anaconda/
You can also search for bug reports related to this problem. To search Red Hat's bug tracking system,
go to:
http://bugzilla.redhat.com/bugzilla/
Finally, if you are still facing problems related to this error, register your product and contact our
support team. To register your product, go to:
http://www.redhat.com/apps/activate/
D.3. Problems After Installation
D.3.1. Problems with the X Window System (GUI)
If you are having trouble getting X (the X Window System) to start, you may not have installed it
during your installation.
If you want X, you can either install the packages from the Red Hat Enterprise Linux CD-ROMs or
perform an upgrade.
If you elect to upgrade, select the X Window System packages, and choose GNOME, KDE, or both,
during the upgrade package selection process.
D.3.2. Remote Graphical Desktops and XDMCP
If you have installed the X Window System and would like to log in to your Red Hat Enterprise Linux
system using a graphical login manager, enable the X Display Manager Control Protocol (XDMCP).
This protocol allows users to remotely log in to a desktop environment from any X Window Sys-
tem compatible client (such as a network-connected workstation or X terminal). To enable remote
login using XDMCP, edit the following line in the file on the Red Hat
/etc/X11/gdm/gdm-config
Enterprise Linux system with a text editor such as or :
vi nano
[xdmcp]
Enable=false
Edit the line to read Enable=true, save the file, and exit the text editor. Switch to runlevel 5 to start
the X server:
/sbin/init 5
From the client machine, start remote X session using . For example:
X
X :1 -query s390vm.example.com