Netboot Image appears when holding ALT at startup but not in "System Preferences>Startup Disk"

[nigelg]

I just recently changed to using the NetSUS instead of Apple Servers for net booting. I have built a new image using AutoCasperNBI and I can successfully boot to it by holding ALT at startup and manually selecting from the available startup disks.

What I can't do is see it in "System Preferences > Startup Disk" which is weird and if anyone has an idea what could be up, I would appreciate it as it breaks zero touch imaging.

[Retrac · Accepted solution]

We found the the same results when moving away from an Xserve to an Ubuntu hosted NetSUS.

Both versions never seem to show up in Sys Pefs, but Alt or N key booting finds the broadcast and boots from it.

We have advised our techs to use Cas Remote to send a netboot bless if a rebuild is required, it's just a tick box.

[nigelg]

Thats what I use for zero touch but I had assumed that it was dependant on a net boot image being available in "Startup Disk". Just tested it and it works setting the bless from Casper Remote. Cool, thanks @Retrac

[calumhunter]

BSDPy the best netboot server around.
Can host multiple NBI's and they show up in option boot and start up disk.

[nigelg]

Just had a look, BSDPy looks interesting.

[bentoms]

@nigelg Apple Thunderbolt/USB to Ethernet Adaptors or 3rd party?

[nigelg]

@bentoms Hi Ben, I was using an iMac with built in Ethernet.