Why can't CentOS see SSD during installation (server with RAID controller)?

Question

linux

The server has a RAID controller and 6 disks of 1 TB each.
I connect an additional SSD to install CentOS on it (I connect the SATA port on the motherboard).
The BIOS sees the SSD. In RAID, the SSD is not displayed (quite logical, because the SSD is connected to the motherboard, and not to the RAID).
One space is allocated to all 6 disks.
I'm trying to install CentOS. But here's the problem: she suggests choosing ONLY the space allocated in the RAID on these 6 disks as the installation location. SSD CentOS does not display. How to be? Maybe it's worth digging into the BIOS?

If you need any detailed technical data - tell me - I will add it to the question

Answer 1

The CentOS installer may not show the disk if it is not wiped, go to the console, find your ssd and wipefs -fa /dev/sdX (X letter SSD) and try again.

Answer 2

Can't see how? fdisk -l show at least something. In the BIOS, the built-in SATA controller may be disabled at all, it's worth checking.