CentOS 7 and Raid B140i from HPE, where is the problem?

Question

linux

Greetings comrades!
Problem installing CentOS 7 on HPE Proliant DL120 Gen9 server. The system does not see disks in a raid created in SSA from HPE. The problem is known and it has already been described on the Internet how it is solved, but I don’t see the drivers on the flash drive.
The solution on the Internet is this (the video also recommends the same):

Download CentOS Image and write it on a USB;
Download HP Proliant Service Pack and locate the hpds driver inside it (download only the b140i drivers from here);
Use dd to write the appropriate driver (u0 or u1) on a separate USB drive;
Insert the CentOS USB in the server, boot from it but at the install menu, press e in case of an UEFI system and add on the linuxefi line the following inst.dd modprobe.blacklist=ahci;
Press Ctrl+x or the keys needed to continue the installation;
Insert the usb drive with the driver;
Press r to refresh the drive list and choose the appropriate drive;
After it unpacks, continue with the installation as usual;

Actually, I do the same thing: I downloaded the driver for the office. Site, unpacked, threw on a USB flash drive. Everything is as described in the clarifications: * RECOMMENDED * HPE Dynamic Smart Array B140i SATA...
Then I do what they recommend. I registered the required line, started up, plugged in the flash drive and updated the data, my flash drive appeared on the screen, where I dropped the file with the dd extension. I select a flash drive, I press enter, but an error is given that the driver was not found.

Tried different versions of the driver, but the result is the same. I don’t know about Linux, maybe I wrote something wrong, or for Linux, you need to somehow prepare flashes separately with your own format, and not fat32.
UPD: Changed the DD extension to ISO, as advised in some forums. Progress has been made, but the result is still an error, but different:

Tell me where to dig?
UPD 2:
Using liveCD Ubuntu, I wrote a file to a USB flash drive using dd as described. But the error is the same, not the repodata folders. But I stick this flash drive back into ubuntu, I go to the flash drive and this folder is there.

Answer 1

With 7.3 it did not work, downloaded 7.2. and scored

Answer 2

You wrote in the instructions
This does not mean to drop the file with the DD extension on the flash drive, it means that the file is an image and it needs to be rolled onto the flash drive using "dd"
Even off. site wrote to you

dd if=hpdsa-<version>.<OSupdate>.x86_64.dd of=/dev/sdc1)