Serve different types of .efi boot files

Wayne Workman · Oct 13, 2016, 1:25 AM

@dureal99d I’ve been on dnsmasq’s mailing list for about a year now. Simon Kelly - creator and maintainer of dnsmasq - sends out an email with answers to questions about every day or every other day. You can get on this mailing list, and you can email him questions like I have, and he’ll respond. As with anything, include as many details as possible. The link to the mailing list and such is below.

http://www.thekelleys.org.uk/dnsmasq/doc.html

Wayne Workman · Oct 13, 2016, 1:31 AM

@dureal99d Just found this in Simon’s archive:

https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg00895.html

dureal99d · Oct 12, 2016, 9:20 PM

@Wayne-Workman @george1421
based upon what i read this config should work right?

# Don't function as a DNS server:
port=0

# Log lots of extra information about DHCP transactions.
log-dhcp

# Set the root directory for files available via FTP.
tftp-root=/tftpboot

# Disable re-use of the DHCP servername and filename fields as extra
# option space. That's to avoid confusing some old or broken DHCP clients.
dhcp-no-override

# inspect the vendor class string and match the text to set the tag
dhcp-vendorclass=BIOS,PXEClient:Arch:00000
dhcp-vendorclass=IA32_UEFI,PXEClient:Arch:00006
dhcp-vendorclass=BC_UEFI,PXEClient:Arch:00007
dhcp-vendorclass=X86-64_EFI,PXEClient:Arch:00009

#UUID for a asus r503u I tested (this info was gleaned from the dnsmasq log file that recorded
# a pxe boot session of this target computer
dhcp-mac=r503u,50:46:5d:98:6f:3c

# The default boot filename, Server name, Server Ip Address
dhcp-boot=undionly.kpxe,,192.168.1.109

# Set the boot file name based on the matching tag from the vendor class (above)
dhcp-boot=net:IA32_UEFI,i386-efi/ipxe.efi,,192.168.1.109
dhcp-boot=net:BC_UEFI,ipxe.efi,,192.168.1.109
dhcp-boot=net:X86-64_EFI,ipxe.efi,,192.168.1.109
dhcp-boot=net:r503u,intel7156.efi,,192.68.1.109

# Our test to ensure both the BC_UEFI and r503u tags are set. 
dhcp-boot=tag:BC_UEFI,tag:r503u, intel7156.efi, 192.168.1.109, 192.168.1.109

# PXE menu.  The first part is the text displayed to the user.  The second is the timeout, in seconds.
pxe-prompt="Booting FOG Client", 3

# The known types are x86PC, PC98, IA64_EFI, Alpha, Arc_x86,
# Intel_Lean_Client, IA32_EFI, ARM_EFI, BC_EFI, Xscale_EFI and X86-64_EFI
# This option is first and will be the default if there is no input from the user.

# PXEClient:Arch:00000
pxe-service=X86PC, "Boot BIOS PXE", undionly.kpxe

# PXEClient:Arch:00007
pxe-service=BC_EFI, "Boot UEFI PXE-BC", ipxe.efi

# PXEClient:Arch:00009
pxe-service=X86-64_EFI, "Boot UEFI PXE-64", ipxe.efi

dhcp-range=192.168.1.109,proxy

this config should work right?

Wayne Workman · Oct 13, 2016, 3:21 AM

You’ve tagged a specific MAC as Simon did in his answer, then later assigned that tag a specific file. Looks good to me.

dureal99d · Oct 12, 2016, 9:22 PM

@Wayne-Workman said in Serve different types of .efi boot files:

You’ve tagged a specific MAC as Simon did in his answer

yet the file I’m telling it to send is not being sent, something is off.

dureal99d · Oct 12, 2016, 9:24 PM

@Wayne-Workman @george1421 has this line as dhcp-mac=set:mac_01,<mac_to_match> perhaps i need to add the =set part. i only took it away because of what simon says in his article

Wayne Workman · Oct 13, 2016, 3:29 AM

@dureal99d Try it. Nothing to loose if it doesn’t work.

dureal99d · Oct 12, 2016, 9:42 PM

@Wayne-Workman @george1421
it still wants to send the ipxe.efi file and i don’t know why

Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 822119114 available DHCP subnet: 192.168.1.109/255.255.255.0
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 822119114 vendor class: PXEClient:Arch:00007:UNDI:003016
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 available DHCP subnet: 192.168.1.109/255.255.255.0
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 vendor class: PXEClient:Arch:00007:UNDI:003016
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 PXE(enp8s0) 50:46:5d:98:6f:3c proxy
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 tags: BC_UEFI, r503u, enp8s0
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 bootfile name: ipxe.efi
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 server name: 192.168.1.109
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 next server: 192.168.1.109
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 sent size:  1 option: 53 message-type  5
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 sent size:  4 option: 54 server-identifier  192.168.1.109
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 sent size:  9 option: 60 vendor-class  50:58:45:43:6c:69:65:6e:74
Oct 12 22:39:00 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1283]: 1735601825 sent size: 17 option: 97 client-machine-id ```

george1421 · Oct 13, 2016, 4:08 AM

@dureal99d I would say this line is important

dnsmasq-dhcp[1283]: 1735601825 tags: BC_UEFI, r503u, enp8s0

This tells me that you have the match mac address right because there is the r503u tag. To prove it change the mac address slightly and than pxe boot again. That tag should disappear. (Don’t forget to change it back because this part IS working)

So the dhcp-boot section is failing to match for us. This is just me guessing but change

#this line
dhcp-boot=net:r503u,intel7156.efi,,192.68.1.109

#to this
dhcp-boot=tag:r503u,intel7156.efi,,192.68.1.109

dureal99d · Oct 13, 2016, 3:12 PM

@george1421 wanna see somthing strange?

when i try to boot in bios mode it gives the intel7156.efi file question is why?

00:11:00:00:00:00:00:00:00:00:00:50:46:5d...
Oct 13 10:06:41 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 sent size: 52 option: 43 vendor-encap  06:01:03:08:07:80:00:01:c0:a8:01:6d:09:10...
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 available DHCP subnet: 192.168.1.109/255.255.255.0
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 vendor class: PXEClient:Arch:00000:UNDI:002001
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 user class: iPXE
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 PXE(enp8s0) 50:46:5d:98:6f:3c proxy
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 tags: BIOS, r503u, enp8s0
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 bootfile name: intel7156.efi
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 next server: 192.68.1.109
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 broadcast response
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 sent size:  1 option: 53 message-type  2
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 sent size:  4 option: 54 server-identifier  192.168.1.109
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 sent size:  9 option: 60 vendor-class  50:58:45:43:6c:69:65:6e:74
Oct 13 10:06:42 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 623212382 sent size: 17 option: 97 client-machine-id```

dureal99d · Oct 13, 2016, 3:13 PM

@george1421 yet when i boot in eufi mode i get the same ipxe.efi

00:11:00:00:00:00:00:00:00:00:00:50:46:5d...
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 830465094 available DHCP subnet: 192.168.1.109/255.255.255.0
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 830465094 vendor class: PXEClient:Arch:00007:UNDI:003016
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 available DHCP subnet: 192.168.1.109/255.255.255.0
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 vendor class: PXEClient:Arch:00007:UNDI:003016
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 PXE(enp8s0) 50:46:5d:98:6f:3c proxy
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 tags: BC_UEFI, r503u, enp8s0
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 bootfile name: ipxe.efi
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 server name: 192.168.1.109
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 next server: 192.168.1.109
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 sent size:  1 option: 53 message-type  5
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 sent size:  4 option: 54 server-identifier  192.168.1.109
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 sent size:  9 option: 60 vendor-class  50:58:45:43:6c:69:65:6e:74
Oct 13 10:08:40 dureal99d-Precision-WorkStation-T5400 dnsmasq-dhcp[1309]: 203324585 sent size: 17 option: 97 client-machine-id```

dureal99d · Oct 13, 2016, 3:16 PM

@george1421 here is my config as it exist now. i know ive got something messed up somewhere

# Don't function as a DNS server:
port=0

# Log lots of extra information about DHCP transactions.
log-dhcp

# Set the root directory for files available via FTP.
tftp-root=/tftpboot

# Disable re-use of the DHCP servername and filename fields as extra
# option space. That's to avoid confusing some old or broken DHCP clients.
dhcp-no-override

# inspect the vendor class string and match the text to set the tag
dhcp-vendorclass=BIOS,PXEClient:Arch:00000
dhcp-vendorclass=IA32_UEFI,PXEClient:Arch:00006
dhcp-vendorclass=BC_UEFI,PXEClient:Arch:00007
dhcp-vendorclass=X86-64_EFI,PXEClient:Arch:00009

#UUID for a asus r503u I tested (this info was gleaned from the dnsmasq log file that recorded
# a pxe boot session of this target computer
dhcp-mac=set:r503u,50:46:5d:98:6f:3c

# The default boot filename, Server name, Server Ip Address
dhcp-boot=undionly.kpxe,,192.168.1.109

# Set the boot file name based on the matching tag from the vendor class (above)
dhcp-boot=net:IA32_UEFI,i386-efi/ipxe.efi,,192.168.1.109
dhcp-boot=net:BC_UEFI,ipxe.efi,,192.168.1.109
dhcp-boot=net:X86-64_EFI,ipxe.efi,,192.168.1.109
dhcp-boot=tag:r503u,intel7156.efi,,192.68.1.109

# Our test to ensure both the BC_UEFI and r503u tags are set. 
dhcp-boot=tag:BC_UEFI,tag:r503u, intel7156.efi, 192.168.1.109, 192.168.1.109

# PXE menu.  The first part is the text displayed to the user.  The second is the timeout, in seconds.
pxe-prompt="Booting FOG Client", 3

# The known types are x86PC, PC98, IA64_EFI, Alpha, Arc_x86,
# Intel_Lean_Client, IA32_EFI, ARM_EFI, BC_EFI, Xscale_EFI and X86-64_EFI
# This option is first and will be the default if there is no input from the user.

# PXEClient:Arch:00000
pxe-service=X86PC, "Boot BIOS PXE", undionly.kpxe

# PXEClient:Arch:00007
pxe-service=BC_EFI, "Boot UEFI PXE-BC", ipxe.efi

# PXEClient:Arch:00009
pxe-service=X86-64_EFI, "Boot UEFI PXE-64", ipxe.efi

dhcp-range=192.168.1.109,proxy```

george1421 · Oct 13, 2016, 9:23 AM

@dureal99d I think I can explain this (understand I’m still learning dnsmasq’s insides too.).

dhcp-mac=set:r503u,50:46:5d:98:6f:3c

dhcp-boot=net:IA32_UEFI,i386-efi/ipxe.efi,,192.168.1.109
dhcp-boot=net:BC_UEFI,ipxe.efi,,192.168.1.109
dhcp-boot=net:X86-64_EFI,ipxe.efi,,192.168.1.109
dhcp-boot=tag:r503u,intel7156.efi,,192.68.1.109

We had a discussion when we were setting up the initial test. if you look at the tag:r503u line. What is matching there?? Look its the mac address so the only condition you have is that the mac address has to be X. So every time dnsmasq see mac address X it will send out intel7156.efi.

Now why in efi mode?? This one has me a bit stumped. Logic would say first match wins, in that case this line would be the first match.

dhcp-boot=net:BC_UEFI,ipxe.efi,,192.168.1.109

So that would explain why ipxe.efi is being sent because the only test here is it be in efi mode.
But in my testing I was seeing that the last match was winning. So if that thought is true. This one should be the winning line.

dhcp-boot=tag:r503u,intel7156.efi,,192.68.1.109

george1421 · Oct 13, 2016, 3:22 PM

@george1421 said in Serve different types of .efi boot files:

dhcp-boot=tag:r503u,intel7156.efi,192.68.1.109

You might want to update that line to something like this

dhcp-boot=tag:BC_UEFI,tag:r503u,intel7156.efi,,192.68.1.109

That will create an AND condition. So it has to be in uefi mode AND the mac address has to match.

dureal99d · Oct 13, 2016, 4:16 PM

@george1421 its back to sending the ipxe.efi. I wondwer what could it be. clearly its something right under the nose.

george1421 · Oct 13, 2016, 4:17 PM

@dureal99d change up the order put the

dhcp-boot=tag:BC_UEFI,tag:r503u,intel7156.efi,,192.68.1.109

before the one with ipxe.efi. (just guessing)

dureal99d · Oct 13, 2016, 6:25 PM

@george1421 said in Serve different types of .efi boot files:

intel7156.efi

not working. hum?

Wayne Workman · Oct 13, 2016, 6:49 PM

Email Simon with your configuration and what you’re trying to do, include details. See what he says. Link him to this thread, even.

dureal99d · Oct 13, 2016, 6:53 PM

@Wayne-Workman I shall do so

Serve different types of .efi boot files

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