Bootpd, DHCP and OS X Server 2.2

I have a Mac Mini running OS X Server in Mountain Lion that I use for imaging via DeployStudio. A couple of days ago, I tried to boot a MacbookPro using Netboot by going to Start-up Disks, and selecting the Netboot image. When the machine restarted, it just sat at the grey screen for about a minute, then it started flashing the globe icon, as it was trying to find the Mini. After about a minute of that, it would give up and then boot back to the OS. I tried this with a NetInstall image, another NetBoot image, another machine, and so on. All of them had the same behavior.
After going through some logs and looking at the documentation, it turned out that the machines really couldn't find the Mini to boot from. Basically, if the DHCP service wasn't turned on, and configured for the same subnet that the Mini was on, then nothing could find the Mini to boot from it. This was bad, really bad, as l work for a large achadimc instatution where they run their own DHCP services for all of the subnets.
The issue turnes out to be that as of 2.2 of OS X Xerver, that the bootpd service doesn't launch by itself anymore. The DHCP service must be running for bootpd to launch. Netboot needs bootpd for the clients to find the host. The solution that I came up with was to modify the /etc/bootpd.plist file.
There are, as of when I am writting this, two versions of Netboot. Netboot 1, or old Netboot, allows the bootpd service to run without DHCP, and Netboot 2 that requires DHCP to be on for bootdp to launch. I went into the /etc/bootpd.plist file and added the following lines to the bottom, just before the closing </dict> tag:
<key>old_netboot_enabled</key>
<array>
<string>en0</string>
</array>
This turns on the old netboot so bootpd could run on its own. You'll have to restart the machine running OS X Server for the change to take affect.
There a couple of downsides to this method. One is if you turn on Internet Sharing in the Sharing system pane, or if you happen to turn on or change the DHCP settings in any way, your changes will be wipped out.
I hope this helps somebody out that that had the same issues that I had.
Micah

Hi Micah,
I have try your solution but it doesn't work.
First Excuse me for my english writing 'cause I'm french...
So the problem is complex, here is my Situation :
Netboot Server : A brand new mac mini server with 10.8.2 server (late 2012, macmini 6,2), 2 terabyte hard drives of each and DeployStudioServer 1.5.16
The services Netinstall, OpenDirectory (master mode) and AFP file sharing are all ok !
I have an external DHCP (linux) server. The DHCP server is on a vlan and the netboot server and netboot clients are on another clan, so I have
add ip address of my netboot server as a ip-helper address in the cisco router configuration of the dhcp server vlan.
And HERE IS MY PROBLEM :
I have used three kinds of netboot's client :
1. a macbook pro 17" (macbookpro 5,2, 17" early 2009) with mac os 10.6.8
2. a macbook pro 13" (macbookPro 9,2 13" mid 2012) with mac os 10.8.2
3. a Mac mini late 2012 ( macmini 6,1) with mac os 10.8.2
I have generate 2 DeployStudio Netboot sets, one for the macbook pro 13 " (10.8.2) and one for the mac mini late 2012 (10.8.2)
SO, It works without problem when I netboot with macbook pro 17" which use for example the netboot set of macboo pro 13" but the other machines don't net boot ! Why ???
In the netinstall logs and when I netboot with macbook pro 17 under 10.6.8, I saw the lines :
b 18 08:43:23 [my-netboot-server] bootpd[2825]: BSDP DISCOVER [en0] 1,0:26:4a:c:d1:8 NetBoot002 arch=i386 sysid=MacBookPro5,2
Feb 18 08:43:23 [my-netboot-server] bootpd[2825]: replyfile /private/tftpboot/NetBoot/NetBootSP0/mbpro-13-1082.nbi/i386/booter
Feb 18 08:43:23 [my-netboot-server] bootpd[2825]: replying to 0.0.0.0
Feb 18 08:43:23 [my-netboot-server]bootpd[2825]: BSDP OFFER sent [1,0:26:4a:c:d1:8] pktsize 360
but when I netboot with macbook pro 13" under 10.8.2, I see only the lines (for example ) :
Feb 18 09:01:07 [my-netboot-server] bootpd[2968]: service time 0.000015 seconds
Feb 18 09:01:40 [my-netboot-server] bootpd[2968]: service time 0.000015 seconds
Feb 18 09:01:40 [my-netboot-server] bootpd[2968]: service time 0.000004 seconds
Feb 18 09:01:52 [my-netboot-server] bootpd[2968]: service time 0.000015 seconds
Feb 18 09:01:52 [my-netboot-server] bootpd[2968]: service time 0.000010 seconds
Feb 18 09:02:08 [my-netboot-server] bootpd[2968]: service time 0.000015 seconds
PLEASE HELP ME, I DON'T UNDERSTAND WHY IT WORKS WITH A "10.6.8" OLD CLIENT AND NOT WITH MY NEW MACS UNDER MOUNTAIN LION ?
HAVE YOU ANY IDEA ?
THANKS IN ADVANCE TO ALL FOR YOUR HELP
BEST REGARDS

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wudu wrote:
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With this promo code from the Linux Action Show you will save 35% off your order of the domain.
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Free DNS host (these guys are a global Internet backbone provider)
https://dns.he.net
Last edited by hunterthomson (2013-03-24 11:00:37)

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To be honest I would what is available on the Windows Server as the basis for your Open Directory deployment. If the Windows Server is already the DHCP Server odds are it is also the DNS Server. DNS can be provided to your clients using the Windows based DHCP service.
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