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The GPT Partition Error Is Displayed When Installing Red Hat 5.4

Publication Date:  2015-06-25 Views:  34 Downloads:  0
Issue Description
Hardware configuration:
An RH2285 configured with three 1 TB hard disks and one LSISAS 1068E redundant array of independent disks (RAID) controller card

Symptom:

The three 1 TB hard disks of the RH2285 are configured with RAID 0. The operating system (OS) is Red Hat enterprise 5.4 x86_64. On the partition user interface (UI), after the /, swap, and /home partitions are set, click Next, as shown in Figure 1. The error message is displayed, as shown in Figure 2.

Figure 1 Partition UI during OS installation



Figure 2 Partitioning Errors

Handling Process
Hard disks in slots 0 and 1 are configured with RAID 1 which is configured as the system partition with the capacity about 1 TB (less than the threshold 2 TB). Then the OS is installed, as shown in Figure 3.

Figure 3 Correct system partition


Root Cause
The partition where the OS is located has a capacity of greater than 2 TB (about 2.8 TB). As a result, the GUID partition table (GPT), a unique global disk partition table, is used, and therefore the GPT partition error is displayed.

The partition where the OS is located has a capacity of greater than 2 TB (about 2.8 TB). As a result, the GUID partition table (GPT), a unique global disk partition table, is used, and therefore the GPT partition error is displayed.
Suggestions
The system partition capacity cannot be greater than 2 TB during Red Hat 5.4 installation. Configure hard disks in slots 0 and 1 with RAID 1 properties and ensure that the hard disk capacity is not greater than 2 TB after RAID configuration. Then use these two hard disks to install the OS, and the remaining hard disks are used to store data.

END