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law
Asked: 2009-08-20 11:47:18 +0800 CST

one-time PXE boot from Linux on HP Proliant hardware

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So, I use Systemimager to provision new CentOS 5.3 hosts via PXE. We have a couple servers that are just test targets that we'll reimage a couple-dozen times a day, and normally, getting them to PXE-boot is as simple as logging onto their iLO interfaces, rebooting, and hitting F12 at the appropriate time. My question is, is it possible to tell the server via the linux commandline to perform a "one-time PXE boot" during its next reboot? Each reimage cycle this would save me many minutes of clicking, typing, waiting for Java to load the ilo console, etc. I know Dell has this capability via OpenIPMI, but I was wondering if HP had similar functionality.

Many thanks! --Lee

centos

4 Answers

  1. This should be possible with ipmitool. Just run:

    ipmitool chassis bootdev pxe

    And your next boot should be a PXE boot.

    Edit: This doesn't seem to work for HP iLO2. However, you can SSH in to the iLO2 interface and reconfigure it there by issuing

    set /system1/bootconfig1/bootsource5 bootorder=1

    On systems that don't support booting from USB key it will be bootsource4 instead. For complete details, see the iLO2 Scripting Reference

    You can issue this command as an argument to ssh and that should work as well.

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  2. So I figured this out with the help of a coworker. Its a dirty, dirty hack, but it works! HP Proliants (at least now, at the end of 2009) will try to boot from a CDROM, then try the harddisk, then try a USB stick, and then they'll do a PXE boot. Since I am reimaging servers anyway, I've figured out that if we zap the boot sector anyway and immediately reboot, HP boxen will go through the boot process, bypass the harddisk because there's no MBR, and immediately PXE-boot. I've written a script that issues the dd commands thusly:

    #!/bin/bash

# This is meant to assist in re-imaging a server.  This will blow away the
# main partition of a given box, forcing it to pxe-boot next boot.
# Naturally, don't be an idiot and run this on a machine you DON'T want nuked
# from orbit

echo "Nuking from orbit will commence in 5 seconds.  Ctrl-C if this NOT what you want."
echo "You have been warned!"
sleep 8

dd if=/dev/urandom of=/dev/cciss/c0d0 bs=512 count=2

dd if=/dev/urandom of=/dev/cciss/c0d0p1 bs=512 count=2
dd if=/dev/urandom of=/dev/cciss/c0d1p1 bs=512 count=2
dd if=/dev/urandom of=/dev/cciss/c0d2p1 bs=512 count=2
sync

echo "Nuke complete!  Rebooting in 5..."
sleep 5
reboot

    HTH! --Lee

    • 6

  3. Alternatively, use the tools from the HP Proliant Support Pack (rpm named hp-health) ... there's a CLI program called 'hpbootcfg' that will do exactly what you want: USAGE: bootcfg [-F -C -H -T] [-S -Q -R -P] [-r -d -n -b] -D Set Defaults everywhere

        -F Floppy first
    -C CD ROM first
    -H Harddrive first
    -T Tape first

    -S one time boot to system configuration utility
    -Q one time boot to quick configuration utility
    -R one time boot to RBSU
    -P one time boot to PXE

    -r one time remote
    -d one time remote dial out
    -n one time remote network
    -b bypass F1/F2
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  4. You can use Ansible to boot your machines from network through their HP iLO interfaces, by using "python-hpilo" module.

    In order to do that you can use some Ansible roles such as:

    - name: boot from netwrok through HP iLO interface only if the system is an HP server
  hpilo_boot:
    force: yes #make sure what you are doing, it will reboot a running machine
    host: YOUR_ILO_ADDRESS
    login: YOUR_ILO_LOGIN
    password: YOUR_ILO_PASSWORD
    media: network
    state: boot_once #default behaviour
  when: cmdb_hwmodel.startswith('HP ')
  delegate_to: localhost

    For more information please check: https://docs.ansible.com/ansible/latest/modules/hpilo_boot_module.html

    You can also boot many machines from network, by using an inventory file. For more information on Ansible roles and tasks please visit https://docs.ansible.com/ansible/latest/user_guide/playbooks_reuse_roles.html and https://docs.ansible.com/ansible/latest/user_guide/basic_concepts.html

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