My environment is SCCM 2012 SP1. During my initial setup of the primary, I used the SCCM 2012 with SP1 installation media so the installation was never RTM. Today, I started experience a problem with unknown computer support. It started after performed some cleanup of old machines without the SCCM client via deletion from a collection (no direct editing of the database).
Here is what happens. I have my build task sequence deployed as available to the all unknown computers collection. I boot an unknown machine using my USB boot media (same boot image assigned to task sequence). It successfully boots to the welcome screen where I can input a static ip address and proxy information which I do not do. When I click Next, I get the no task sequence available for this computer error.
When I examine smsts.log, I can see that it is the machine is unknown and it is using the unknown machine GUID.
Client Identity: TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Netbios name: TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Client GUID = , Netbios name = , State = Known TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Is 64-bit capable: 1 TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Using unknown machine GUID: d46e917f-a48d-4060-8d81-51ad48c80141 TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Further down in smsts.log
Request client ID: d46e917f-a48d-4060-8d81-51ad48c80141 TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Response client ID: d46e917f-a48d-4060-8d81-51ad48c80141 TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Retrieving Policy Assignments: TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Successfully read 0 policy assignments. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Retrieving collection variable policy. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Found 0 collection variables. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Retrieving machine variable policy. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Found 0 machine variables. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Setting collection variables in the task sequencing environment. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Setting machine variables in the task sequencing environment. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
Exiting TSMediaWizardControl::GetPolicy. TSMBootstrap 9/19/2013 12:13:20 PM 1324 (0x052C)
WelcomePage::OnWizardNext() TSMBootstrap 9/19/2013 12:13:20 PM 1304 (0x0518)
Loading Media Variables from "D:\sms\data\variables.dat" TSMBootstrap 9/19/2013 12:13:20 PM 1304 (0x0518)
no password for vars file TSMBootstrap 9/19/2013 12:13:20 PM 1304 (0x0518)
No assigned task sequence. TSMBootstrap 9/19/2013 12:13:20 PM 1304 (0x0518)
When I look in the All Systems Collection, I see a resource called unknown and it has the same MAC address of the machine I trying to build. When I see what deployments are available to unknown, it does not have any listed. If I delete unknown and try again, I get the same error and unknown reappears without any deployments to it.
I do not see how my early cleanup could have been cause since unknown computers x86 and x64 cannot be deleted via a collection (delete is grayed out on them).
Does anyone have any ideas on the cause? Thank you for the assistance.