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Case 1 PXE Booting Fails in an RH2285

Publication Date:  2015-06-25 Views:  239 Downloads:  0

Issue Description

Hardware configuration:
RH2285 server, 12 hard disks, and 1068E controller card


The server has enabled the preboot execution environment (PXE) startup function for its network interface cards (NICs). After the server restarts, the NIC PXE cannot be started, as shown in the red box in Figure 1.

Figure 1 Failure in starting the PXE

Handling Process

1.  Check that the server Dynamic Host Configuration Protocol (DHCP) function is normal.

2.  Access the basic input/output system (BIOS) to check the PXE setting. NIC1 PXE Configuration is Enabled, and NIC2 PXE Configuration is Disabled, as shown in Figure 2.

Figure 2 PXE configuration

NIC 1 corresponds to the eth 0 on-board network port of the RH2285, and NIC 2 corresponds to the eth 1 on-board network port of the RH2285.

3.  Connect the client to the eth 1 network port by using a network cable, as shown in Figure 3.

Figure 3 Rear view of the RH2285

4.  Set NIC2 PXE Configuration to Enabled, as shown in Figure 4.

Figure 4 Changed PXE configuration

5.  The server can obtain an IP address allocated by the DHCP server after being restarted. The PXE boots properly.

Root Cause

The PXE configuration of the BIOS is incorrect. Enable the eth 1 network port to resolve the problem.


1.  Check the physical connections of server cables.

2.  Configure the PXE in the BIOS based on the cable connections.


The PXE in the BIOS is configured based on the physical connections of network cables.