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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.

12.16. Disk Partitioning Setup

Partitioning allows you to divide your hard drive into isolated sections, where each section behaves as its own hard drive. Partitioning is particularly useful if you run multiple operating systems. If you are not sure how you want your system to be partitioned, read Chapter 25, An Introduction to Disk Partitions for more information.

On this screen you can choose to create the default layout or choose to manual partition using the 'Create custom layout' option of Disk Druid.

The first three options allow you to perform an automated installation without having to partition your drive(s) yourself. If you do not feel comfortable with partitioning your system, it is recommended that you do not choose to create a custom layout and instead let the installation program partition for you.

You can configure an iSCSI target for installation, or disable a dmraid device from this screen by clicking on the 'Advanced storage configuration' button. For more information refer to Section 12.17, “ Advanced Storage Options ”.

Warning

The Update Agent downloads updated packages to /var/cache/yum/ by default. If you partition the system manually, and create a separate /var/ partition, be sure to create the partition large enough (3.0 GB or more) to download package updates.

Disk Partitioning Setup

Figure 12.12. Disk Partitioning Setup

If you choose to create a custom layout using Disk Druid, refer to Section 12.19, “Partitioning Your System”.

Warning

If you receive an error after the Disk Partitioning Setup phase of the installation saying something similar to

The partition table on device hda was unreadable. To create new partitions it must be initialized, causing the loss of ALL DATA on this drive.

No matter what type of installation you are performing, backups of the existing data on your systems should always be made.


 
 
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