[SOLVED] Unable to install SNMP on Windows server 2012/2012 R2

[Scar_UY]

Well, finally managed to convince my boss to have a backup-exec license for that server so I can make a full backup and restore it to a VM where I can try things without affecting the production server (took some doing)
So with the server faithfully replicated in a (way faster) VM, y think I solved it with your suggestion:
- Started in recovery mode, deleted the pending* files in C:\Windows\WinSxS
- run "DISM /Image:C:\ /Cleanup-Image /RevertPendingActions /ScratchDir:C:\Temp" successfully
- restarted in normal mode, installed with 'Install-WindowsFeature SNMP-Service -IncludeAllSubFeature -Verbose' which of course failed, but left the service created
- changed the service to manual
- run a reg file with the [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SNMP] from another identical server
- restarted and run "dism /online /Enable-Feature /FeatureName:Server-RSAT-SNMP"
- restarted again and voila, everything working as it should
I'm sure I did one or two unnecessary steps, but I don't think anything I did was potentially harmful and it all worked up correctly. I'm waiting for the weekend to try it on the production server, with the peace of mind that I have a full image ready to be recovered if I screw up...
I'll update next week when (hopefully) it's working

 

[x BlueRobot]

That's great news, it did seem like there was a broken pending transaction somewhere then, hopefully you won't have any issues when you attempt to do the same steps on the production server.

 

[Scar_UY]

Well, I'm closing this chapter:
- Started in recovery mode, deleted the pending* file in C:\Windows\WinSxS
- run "DISM /Image:C:\ /Cleanup-Image /RevertPendingActions /ScratchDir:C:\Temp" but it failed.
Restarted, and SNMP service works, if I connect from another server I can set it up and it's now reporting, judging by the missing tabs in the service 'Server-RSAT-SNMP' is missing, and installation fails with error 3017 (restart missing, despite having restarted several times), also Server Manager shows "online; cannot get role and feature data" but at this point honestly I don't care anymore, we'll never instal another role in this server anyway and I'll never change SNMP settings, and if that need arises, I can do it remotely from another computer anyway.
In any case this seems like it'll prevent windows update, so I might open a new thread for that specific problem, the "install SNMP service" goal for this thread is fulfilled.
Thank you very much for your help and patience!

 

[x BlueRobot]

Glad you managed to get the desired service installed in the end, please create a new thread if you require any assistance with the other issues.