Hello, maybe we could try this?   [URL]    You can boot the OS with this then upgrade idrac.   [URL]  
I am having issues updating the idrac on my r410 server. I do not believe the servers idrac has been updated since it was made. I have tried accessing the idracs website it hosts, but the ssl certificate and the TLS version are waaay to old for modern browsers. I have used edge in IE mode, but the website is broken to the point of unusable. Is there any way to update the idrac from a USB stick, or from a OS that is on the system?   Any help will be much appreciated! Thanks in advance.
Updating iDrac on on a really old R410