Update R715 server

Hi,

I'm trying to update the firmware of my R715 Dell servers since yesterday.

I have downloaded this ISO: SUU-LIN32_17.12.200.229.ISO

But since it doesn't boot, I can't use it...

I have tried to boot the server using this other ISO as a Virtual CD: sbuu_2.4_1294_A01.iso

But then I can't mount another ISO on the Virtual Console.

Then, I tried to create a USB boot of that ISO, and I wasn't able to do it.

Tried with Rufus (FAT32) and the utility won't boot up.

I also tried to copy the repository folder from the first ISO to a FAT32 pendrive, but the utility doesn't recognize it...

 

I tried using the Lifecycle controller too, using a CD, but it asks for a Catalog or Package Path and it doesn't accept /repository or anything else that I typed in it.

 

I mean, how hard can Dell make our lives just to update one single server??