[mythtv-users] OT: netboot without custom dhcp settings?

[Darac Marjal]

On Thu, Nov 12, 2015 at 07:49:21PM -0500, Dave Badia wrote:

>Hi List - I've been netbooting 3 of my FEs for the past few years 
>but... I got AT&T gigabit installed yesterday (yay) but the gateway 
>doesn't have a passthrough mode and it's DHCP server gives me no way 
>to add the necessary "dhcp_boot=pxelinux... " to the DHCP responses 
>(booo).

Have a look at "Proxy DHCP". As far as I can tell, only dnsmasq supports 
this, but the idea is that you have two DHCP servers on a network.  One 
responds with an IP address as usual, the other responds ONLY with the 
PXE boot parameters. A PXE client is supposed to wait for the 
possibility of two DHCP responses, then merge the options 
together.

>
>Is there any way to netboot without custom DHCP options?  Maybe a 
>small bootloader on a usb stick to give it the tftp host and path?
>
>Tried googling but have come up empty thus far...
>
>Thanks in advance. Dvae

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