I'm having difficulty seeing my NetBoot server in the Startup Disk pane, even though I've completely disabled SIP. It boots fine holding down Option. Systems are running 10.11.3.
Am I missing something obvious?
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A bit on the same topic : I had issues with my own product (DiskMaker X, for those who may know it ^^) where disks created using createinstallmedia did appear when pressing Alt at startup but not in System preferences.
Someone found the fix : there needs to be an empty mach_kernel file at the root of the install disk. So it may be a similar issue that somewhere in your Netboot / Netinstall disk the mach_kernel file is missing.
What you just need to do then is create an empty file (i.e using touch mach_kernel to create the file at the root of your Netinstall disk (or maybe outside of it ?) to have the disk appear.
Funny this post should come about, as I too have seen this issue in 10.11.3 / Server 5.0.15.
But in my case, this only seems true for machines that are using a thunderbolt to ethernet adapter (newer laptops). They will see the Netboot server using the Option key, just not in System Prefs.
Machines that are using their internal NIC, on the other hand, do not seem to have issue seeing the Netboot server in the System Prefs or using the Option key.
Bookmarking this thread.
Apple USB Ethernet adaptor & tried Apple Thunderbolt to Ethernet Adaptor
Machine on same vlan
outcome=not showing in Startup Disk Preference Pane but can netboot holding down N or option key
Server=Mac Mini server on same vlan
NetBoot=tried image made from System image Utility and AutoCasperNBI on 10.10.5 & 10.11.3 server
@kerouak thanks for the tip i will give it a go
Ive checked with our Networks and they say we have ip helpers in place even though they are on the same vlan.
My problem is my test physical machines are remote so if i image to 10.11.3 i cannot reimage them remotely and have to annoy someone in the office keep getting them to netboot.
Is there anyway to run the bless command remotely?
Apple are really annoying for doing this.
The thing is, A NETSUS appliance should enable netbooting across VLANS.
I had this issue, I just 'bounced' the Linux box, Then re enabled netboot on the Appliance and all good..
The terminal trick kept us going and is good in an 'Emergency' i.e , when a memeber of staff wants their mac 'yesterday' .. :-)
Seeing this on Thunderbolt or USB Ethernet adapters, but not built-ins, such as on iMacs, in 10.11.3.
It's probably not your NetBoot images, so my advice is its probably not worth rebuilding them if they are working for everything else you need (i.e. you can see them and boot to them in older versions of the OS X Startup Disk Preference Pane, Startup Manager, etc). I'm not seeing any NetBoot images in my environment, including generic OS X NetInstallers that have been working all along that haven't been touched.