Preparing for a Hard Drive Installation

Hard drive installations only work from ext2, ext3, or FAT file systems. If you have a
file system other than those listed here, such as reiserfs, you will not be able to perform
a hard drive installation.

Hard drive installations require the use of the ISO or DVD/CD-ROM images. An
ISO image is a file containing an exact copy of a DVD/CD-ROM image. After
placing the required ISO images (the binary Red Hat Enterprise Linux DVD/CD-
ROMs) in a directory, choose to install from the hard drive. You can then point
the installation program at that directory to perform the installation.

To prepare your system for a hard drive installation, you must set the system up
in one of the following ways:

  • Using a set of CD-ROMs, or a DVD — Create ISO image files from eachinstallation CD-ROM, or from the DVD. For each CD-ROM (once for the DVD), execute the following command on a Linux system: • dd if=/dev/cdrom of=/tmp/file-name.iso
  • Using ISO images — transfer these images to the system to be installed.
Verifying that ISO images are intact before you attempt an installation helps to
avoid problems. To verify the ISO images are intact prior to performing an
installation, use an md5sum program (many md5sum programs are available for
various operating systems). An md5sum program should be available on the
same Linux machine as the ISO images.

Note
The Red Hat Enterprise Linux installation program has the ability to test the integrity of
the installation media. It works with the CD / DVD, hard drive ISO, and NFS ISO
installation methods. Red Hat recommends that you test all installation media before
starting the installation process, and before reporting any installation-related bugs
(many of the bugs reported are actually due to improperly-burned CDs). To use this
test, type the following command at the boot: prompt (prepend with elilo for Itanium
systems): linux media check

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