Red Hat Enterprise Linux 3: System Administration Guide
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# 10.4. Partition Information

Figure 10-4. Partition Information

Select whether or not to clear the Master Boot Record (MBR). Choose to remove all existing partitions, remove all existing Linux partitions, or preserve existing partitions.

To initialize the disk label to the default for the architecture of the system (for example, `msdos` for x86 and `gpt` for Itanium), select Initialize the disk label if you are installing on a brand new hard drive.

## 10.4.1. Creating Partitions

To create a partition, click the Add button. The Partition Options window shown in Figure 10-5 appears. Choose the mount point, file system type, and partition size for the new partition. Optionally, you can also choose from the following:

- In the Additional Size Options section, choose to make the partition a fixed size, up to a chosen size, or fill the remaining space on the hard drive. If you selected swap as the file system type, you can select to have the installation program create the swap partition with the recommended size instead of specifying a size.

- Force the partition to be created as a primary partition.

- Create the partition on a specific hard drive. For example, to make the partition on the first IDE hard disk (`/dev/hda`), specify `hda` as the drive. Do not include `/dev` in the drive name.

- Use an existing partition. For example, to make the partition on the first partition on the first IDE hard disk (`/dev/hda1`), specify `hda1` as the partition. Do not include `/dev` in the partition name.

- Format the partition as the chosen file system type.

Figure 10-5. Creating Partitions

To edit an existing partition, select the partition from the list and click the Edit button. The same Partition Options window appears as when you chose to add a partition as shown in Figure 10-5, except it reflects the values for the selected partition. Modify the partition options and click OK.

To delete an existing partition, select the partition from the list and click the Delete button.

### 10.4.1.1. Creating Software RAID Partitions

Refer to Chapter 3 Redundant Array of Independent Disks (RAID) to learn more about RAID and the different RAID levels. RAID 0, 1, and 5 can be configured.

To create a software RAID partition, use the following steps:

1. Click the RAID button.

2. Select Create a software RAID partition.

3. Configure the partitions as previously described, except select Software RAID as the file system type. Also, you must specify a hard drive on which to make the partition or specify an existing partition to use.

Figure 10-6. Creating a Software RAID Partition

Repeat these steps to create as many partitions as needed for your RAID setup. All of your partitions do not have to be RAID partitions.

After creating all the partitions needed to form a RAID device, follow these steps:

1. Click the RAID button.

2. Select Create a RAID device.

3. Select a mount point, file system type, RAID device name, RAID level, RAID members, number of spares for the software RAID device, and whether to format the RAID device.

   Figure 10-7. Creating a Software RAID Device

4. Click OK to add the device to the list.

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