Add some documentation of IPV6 netboot

[peterharperuk]

There's some support in the bootloader for IPV6 netboot. It's about time I wrote some documentation for it!

[ghost]

Perhaps this should be added to https://github.com/raspberrypi/documentation/blob/develop/documentation/asciidoc/computers/remote-access/network-boot-raspberry-pi.adoc rather than being a separate file?

[aallan]

Perhaps this should be added to https://github.com/raspberrypi/documentation/blob/develop/documentation/asciidoc/computers/remote-access/network-boot-raspberry-pi.adoc rather than being a separate file?

The documentation makes fairly extensive use of the Asciidoc include functionality so that things can be moved around and reordered. I'd much prefer the current arrangement where it is in a separate file.

[aallan]

Initial copy edit completed. LGTM at this point. @peterharperuk if you could take a read through and make sure I didn't break anything, that'd be really great!

Sometime in the next month or two I'm going to replace the current IPv4 netboot section of the documentation with a cleaner version I wrote for the upcoming "Build a Cluster" project tutorial. Once that's published I'll work through this and my own instructions to bring them into line so they look as similar as possible given the differences.

[peterharperuk]

bring them into line so they look as similar as possible

Just FYI. I've struggled a lot with IPV6 support in DHCP servers. They never quite do what I want and seem less functional than they are for IPV4

[aallan]

bring them into line so they look as similar as possible

Just FYI. I've struggled a lot with IPV6 support in DHCP servers. They never quite do what I want and seem less functional than they are for IPV4

Yeah, I figured as much. The walkthrough I wrote for the Cluster tutorial also uses the ISC DHCP server and a standalone TFTP server, so that'll help a lot. I was mostly figuring on fixing up the IPv4 version as I was presuming this was the more fragile. That and my IPv6 knowledge is pretty limited. 😄

[peterharperuk]

This looks great to me.

[aallan]

Lets get it done then! 😄

[aallan]

...and deployed to the production site in #2438. Give it 10 minutes or so for the build to happen and the cache to flush!