Red Hat ENTERPRISE LINUX AS 2.1 - Guia de Instalação descarregar pdf (Página 22)

14 Chapter 2. Installing Red Hat Enterprise Linux

the graphical installation offers more package selection details and other options not available in

text-based installs. It is strongly recommended to use the graphical installation whenever possible.

To run the graphical installation, use a workstation that has an X Window System server or VNC

client installed. Use an SSH client that allows X11 forwarding or a Telnet client. SSH is strongly

recommended for its security features as well as its ability to forward X and VNC sessions. Enable

X11 forwarding in your SSH client prior to connecting to the Linux image (the Linux guest running

on z/VM).

2.3.1. Installation using X11 Forwarding

For example, to connect to the Linux image and display the graphical installation program using

OpenSSH with X11 forwarding on a Linux workstation, type the following at the workstation shell

prompt:

ssh -X linuxvm.example.com

The -X option enables X11 forwarding.

The graphical installation program cannot be started if your DNS or hostnames are not set correctly,

or the Linux image is not allowed to open applications on your display. You can prevent this by setting

a correct DISPLAY= variable. Add the parameter DISPLAY=workstationname:0.0 in the param-

eter ﬁle, replacing workstationname with the hostname of the client workstation connecting to

the Linux Image. Allow the Linux image to connect to the workstation using the command xhost

+linuxvm on the local workstation.

If the graphical installation via NFS does not automatically begin for you, verify the DISPLAY= vari-

able settings in the parm ﬁle. If performing a VM installation, rerun the installation to load the new

parm ﬁle on the reader. Additionally, make sure when performing an X11 forwarded display that the

X server is started on the workstation machine. Finally, make sure the NFS installation method is

chosen, as this is the only method that supports graphical installations.

2.3.2. Installation using VNC

If you are using VNC, a message on the workstation SSH terminal prompts you to start the VNC client

viewer and details the VNC display speciﬁcations. Enter the speciﬁcations from the SSH terminal into

the VNC client viewer and connect to the Linux image to begin the installation.

Once you have logged into the Linux image the loader will start the installation program.

When the loader starts, several screens appear for selecting the installation method.

2.4. Installing from a Hard Drive (DASD)

The Select Partition screen applies only if you are installing from a disk partition (that is, if you

selected Hard Drive in the Installation Method dialog). This dialog allows you to name the disk

partition and directory from which you are installing Red Hat Enterprise Linux.

Enter the device name of the partition containing the Red Hat Enterprise Linux ISO images. There is

also a ﬁeld labeled Directory holding images.

If the ISO images are in the root (top-level) directory of a partition, enter a /. If the ISO images

are located in a subdirectory of a mounted partition, enter the name of the directory holding the

ISO images within that partition. For example, if the partition on which the ISO images is normally

mounted as /home/, and the images are in /home/new/, you would enter /new/.

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