DHCP Option 66 and 244
At the moment we use the DHCP option to tell the clients the IP of the RSA. Now we had the problem some time ago that an RSA has failed and this has caused boot problems on some machines. Now the question arises to me whether it is possible to use the option 244 as a kind of backup, thus here an IP of another RSA to register. Does this make sense?
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Posted by:
Nico_K
4 years ago
this is possible and if the RSA is reachable it also makes sense. But it is always a bad idea to deploy over the internet due to the size of the deployments (iE images)
Btw, What kind of "Boot Problems" are you referring to?
I mean once a machine is Imaged, they do not need the RSA\SDA to be there, to boot at all....
Unless you have been relying on chainbooting for Windows to Load, this happens when "pure UEFI" devices (devices who are not compatible with the MBR anymore), were imaged in Legacy Mode or with Legacy Image, and now if the RSA\SDA is not there to chainboot, they can't boot to Windows on their own?
See:
https://en.wikipedia.org/wiki/Chain_loading
See:
https://www.dell.com/support/article/us/en/19/sln301692/no-boot-device-found-when-you-change-the-boot-sequence-to-legacy-mode?lang=en - Channeler 4 years ago