Chapter 3. Installing Red Hat Linux
37
If you are not sure how to do this, refer to the Official Red Hat Linux Customization Guide and the
Official Red Hat Linux Reference Guide for more information.
3.7.1.1. Using ISO Images for NFS Installs
NFS installations can use ISO (or CD ROM) images rather than copying an entire installation tree.
After placing the required ISO images (the binary Red Hat Linux CD ROMs) in a directory, choose
to install via NFS. You will then point the installation program at that directory to perform the instal 
lation.
Verifying that the ISO images are intact before you attempt an installation will help to avoid problems
that are often encountered during an NFS installation. To verify the ISO images are intact prior to per 
forming an installation, use an md5sum program (many md5sum programs are available for various
operating systems). An md5sum program should be available on the same server as the ISO images.
Note
ISO images now have an md5sum embedded in them. To test the checksum integrity of an ISO
image, at the installation boot prompt, type:
boot:
linux mediacheck
Additionally, if a file called
updates.img
exists in the directory from which you install, then it will
be used for installation program updates. Refer to the file
install methods.txt
in the
anaconda
RPM package for detailed information on the various ways to install Red Hat Linux, as well as how
to apply the installation program updates.
Note
You can only have the ISO images for one release of Red Hat Linux in the directory.
3.8. Installing via NFS
The NFS dialog (Figure 3 4) applies only if you are installing from an NFS server (if you booted from
a network or PCMCIA boot disks and selected NFS Image in the Installation Method dialog).
Enter the fully qualified domain name or IP address of your NFS server. For example, if you are in 
stalling from a host named
eastcoast
in the domain
redhat.com
, enter
eastcoast.redhat.com
in the NFS Server field.
Next, enter the name of the exported directory. If you followed the setup described in Section 3.7, you
would enter the directory
/location/of/disk/space/
which contains the
RedHat
directory.
If the NFS server is exporting a mirror of the Red Hat Linux installation tree, enter the directory which
contains the
RedHat
directory. (If you do not know this directory path, ask your system administrator.)
For example, if your NFS server contains the directory
/mirrors/redhat/i386/RedHat
, enter
/mirrors/redhat/i386
.






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