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NOTE: CentOS Enterprise Linux 5 is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux 5 is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux 5.

11.6. Preparing for a Hard Drive Installation

Note

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.

Verifying that the ISO images are intact before you attempt an installation will help to avoid problems that are often encountered during a hard drive installation. 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 server as the ISO images.

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 each installation 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.

Additionally, if a file called updates.img exists in the location from which you install, it is used for updates to anaconda, the installation program. Refer to the file install-methods.txt in the anaconda RPM package for detailed information on the various ways to install Red Hat Enterprise Linux, as well as how to apply the installation program updates.


 
 
  Published under the terms of the GNU General Public License Design by Interspire