Dnsmasq proxy booting with UEFI

[Tom Elliott]

@Killklli I’m not 100% sure you need to specify the file as ipxe.0. With Proxy dhcp the .0 extension is automatically appended, and I can’t keep it from appending it. So If my suspicions are correct, it may actually be looking for a file called: ipxe.0.0 as well. I don’t know for sure though.

[need2]

@Tom-Elliott It does. At least it did in my environment when I was fighting with it. Getting close to being able to revisit this subject myself. Expect to be migrating our DHCP servers to WinSrv 2012R2 in the next 30 days.

[Wayne Workman]

This post is deleted!

[Wayne Workman]

@need2 @Tom-Elliott well that complicates things… why did it work for me then? gah. I really need to sit down and tackle this.

@Killklli Run the below commands and then try the attached script.

ln -s /tftpboot/ipxe.efi /tftpboot/ipxe.efi.0
ln -s /tftpboot/ipxe.efi /tftpboot/ipxe.0
ln -s /tftpboot/undionly.kpxe /tftpboot/undionly.kpxe.0
ln -s /tftpboot/undionly.kpxe /tftpboot/undionly.0

port=0
log-dhcp
tftp-root=/tftpboot
dhcp-option=17,/images
dhcp-no-override


#this line is suspicious to me. What the heck does 6,2b mean ?
dhcp-option=vendor:PXEClient,6,2b

#Here, I define netboot types
dhcp-vendorclass=BIOS,PXEClient:Arch:00006
dhcp-vendorclass=UEFI,PXEClient:Arch:00007

#Set bootfile names depending on the client vendor identifier
dhcp-boot=BIOS,undionly.kpxe
dhcp-boot=UEFI,ipxe.efi

pxe-prompt="Press F8 for boot menu", 3
pxe-service=X86PC, “BIOS and LEGACY Network Boot”, undionly
pxe-service=X86PC, “UEFI Network Boot”, ipxe
dhcp-range=x.x.x.x,proxy

[Killklli]

@Wayne-Workman Hmmmm. UEFI still isn’t grabbing. But Legacy still is.

[Wayne Workman]

@Killklli I just tested on my system - all I had was failure with using symbolic links.

So - lets get rid of those and just use copies:

rm -f /tftpboot/undionly.kkpxe.0
rm -f /tftpboot/undionly.0
rm -f /tftpboot/ipxe.efi.0
rm -f /tftpboot/ipxe.0
cp /tftpboot/undionly.kkpxe /tftpboot/undionly.0
cp /tftpboot/ipxe.efi /tftpboot/ipxe.0

Please stand by, I’m testing the code I gave you (it’s been a long day).

[Wayne Workman]

@Killklli Try this, I just confirmed it works with LEGACY, have a great feeling about UEFI also.

@Developers @Moderators Just making sure you guys see this.

#port=0
log-dhcp
tftp-root=/tftpboot
dhcp-option=17,/images
dhcp-no-override

#Here, I define netboot types
dhcp-vendorclass=BIOS,PXEClient:Arch:00006
dhcp-vendorclass=UEFI,PXEClient:Arch:00007

#Set bootfile names depending on the client vendor identifier
dhcp-boot=net:BIOS,192.168.1.2,undionly.0
dhcp-boot=net:UEFI,192.168.1.2,ipxe.0

pxe-prompt="Press F8 for boot menu", 3
pxe-service=X86PC, “BIOS and LEGACY Network Boot”, BIOS
pxe-service=X86PC, “UEFI Network Boot”, UEFI
dhcp-range=192.168.1.2,proxy

[Killklli]

@Wayne-Workman I’m still confused that for whatever reason I’m not even seeing the UEFI boot grabbing IP’s. I just get a server timeout.

[Wayne Workman]

@Killklli try this - beyond this, I need some shut eye and I need to bring home my work laptop which is UEFI capable.

log-dhcp
tftp-root=/tftpboot
dhcp-boot=undionly.0,10.0.0.3,10.0.0.3
dhcp-option=17,/images
dhcp-option=vendor:PXEClient,6,2b
dhcp-no-override
pxe-prompt="Press F8 for boot menu", 3
pxe-service=X86PC, “Network Boot using undionly.0”, undionly
pxe-service=X86-64_EFI, "Network boot using ipxe.0", ipxe
dhcp-range=10.0.0.3,proxy


#for pxe-service=    the known types are below.
#x86PC, PC98, IA64_EFI, Alpha, Arc_x86, Intel_Lean_Client, IA32_EFI, BC_EFI, Xscale_EFI and X86-64_EFI

[Killklli]

@Wayne-Workman Just for when you get back to this. It still didn’t work. Still getting PXE-E18: Server Response Timeout for UEFI machines. But Legacy Works.

[Wayne Workman]

@Killklli Another thing I learned last night about dnsmasq

is…

You can only have one config file in /etc/dnsmasq.d/ and the names of the files in there do not matter - the daemon will read all of them and use them as config files if it can.

because the configuration file here: /etc/dnsmasq.conf does not specify a name, it just specifies a directory to look in.

So if you have a backup config file inside of /etc/dnsmasq.d/ you have to move that file elsewhere because it will interfere with dnsmasq.

[Sebastian Roth]

@Killklli Are you still working on this? I have done a lot of testing and I am pretty sure that dnsmasq is not able to boot most UEFI devices as it uses DHCP option 43 which they don’t like (see here: https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg09233.html). I am working on a node.js proxy DHCP to support BIOS/UEFI and Mac OS X. But will be still a while I suppose - BIOS works pretty good and UEFI is not far either but the code is still a big mess.

Follow this thread: https://forums.fogproject.org/topic/5870/dhcp-proxy-for-fog