Install Centos7 on Dell R410 server problems

[1885]

We have a Dell R410 Server that was donated to our testing lab. We are running Centos7 in a lab for instruction.
8GB RAM
4 600GB SAS drives.
We want to install Centos without raiding the SAS hard drives so we removed the virtual disk.
We are having trouble booting to an installation media USB or CD.

If anyone has ideas , please throw me a bone.
Do we have to create Virtual Disks?

[TrevorH]

You'll have to set up the RAID controller so it presents a disk to the operating system before you install. Different ones use different terminolgy but creating a Virtual Disk sounds like something you need to do.

How did you create your USB stick? The only supported methods are to use dd (on linux) or dd or rawrite2 on Windows.

[1885]

Thank you.
I always use dd to create USB installs using Linux. Centos or Gentoo
I'll post back when I have some success.

[1885]

You'll have to set up the RAID controller so it presents a disk to the operating system before you install. Different ones use different terminolgy but creating a Virtual Disk sounds like something you need to do.

How did you create your USB stick? The only supported methods are to use dd (on linux) or dd or rawrite2 on Windows.

- Created a RAID0: Virtual Drive *(4x600GM = 2.1TB)
- There are 4 SAS drives.

I was able to boot to a system install now the Centos install can not see the Virtual drive.
Do I set the bios to ATA?
I'm using a usb with Centos 7 install minimal.

Thanks