QLogic OFED+ Host Software User Guide, Rev. B

8–gPXE
HTTP Boot Setup
This is the kernel that will boot.
This file can be copied from any machine that has RHEL5.3 installed.
2. Start httpd
Steps on the gPXE Client
1. Ensure that the Host Channel Adapter is listed as the first bootable device in
the BIOS.
2. Reboot the test node(s) and enter the BIOS boot setup.
This is highly dependent on the BIOS for the system but you should see a
menu for boot options and a submenu for boot devices.
Select gPXE IB as the first boot device.
When you power on the system or press the reset button, the system will
execute the boot code on the Host Channel Adapter that will query the
DHCP server for the IP address and boot image to download.
Once the boot image is downloaded, the BIOS/Host Channel Adapter is
finished and the boot image is ready.
3. Verify system boots off of the kernel image on the boot server. The best way
to do this is to boot into a different kernel from the one installed on the hard
drive on the client, or to un-plug the hard drive on the client and verify that on
boot up, a kernel and file system exist.
HTTP Boot Setup
gPXE supports booting diskless machines. To enable using an IB driver, the
(remote) kernel or initrd image must include and be configured to load that driver.
This can be achieved either by compiling the Host Channel Adapter driver into the
kernel, or by adding the device driver module into the initrd image and loading it.
1. Make a new directory
mdir /vault/images/uniboot
2. Change directories
cd /vault/images/uniboot
3. Create a initrd.img file using the information and example in Step 4
of Boot Server Setup.
4. Create a uniboot.php file using the example in Step 5 of Boot Server
Setup.
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