IP address of DHCP Server

[Zare]

Well the problem is your workstations have their own root, and then you remote mount the server root to /net.
When the same workstation does PXE boot, it doesn't have root, and it will mount that export to its root.

Therefore you have server root fs mounted on multiple live network devices. Bad practices aren't "all others that aren't declared good(TM)" but ones that introduce problems, technical debt. Seemingly OK at the get go, but will become problematic soon, as you can see here...

NFS does ensure locking but FreeBSD cannot operate with multiple instances using the same configuration files.

Your solution is to not export the server's root filesystem. Just like with jails, you can install another instance of FreeBSD base to any directory, so export that. As that will have its own rc.conf, you can setup the network however you want it.

 

[balanga]

I was hoping that I could configure a specific rc.conf for a specific host but don't see how to do that.

 

[mer]

I think pxeboot typically can discrimnate based on the MAC address of the client system

 

[balanga]

I think pxeboot typically can discrimnate based on the MAC address of the client system

Do you have a link on how it does that?

 

[mer]

Not offhand, and I've not done anything for freebsd.

 

[atax1a]

The problem is that I have just discovered that if I boot a computer diskelessly it uses the same rc.conf and uses the same IP address because it's set staticaly and this causes all sorts of problems and makes my LAN unusable. If the IP address was set dynamically a different IP address would be used.

yeah, that's not a usable configuration. don't do that.

there's a reason diskless setups use a separate tree for their root, and so on. the infrastructure necessary to boot them is configured differently than the diskless nodes.

man diskless has information on setting this up correctly.