trouble booting ubuntu server 18.04 LTS after installation on HPE proliant ML30 gen9

[mbokk]

SO! I just bought my first HPE proliant ML30 gen 9.

I just got it.... unboxed it.... unpacked my 2 new harddrives... put them inside the server...  pluged in the cables.

I then put in my usb bootable drive med ubuntu server 18.04 LTS.

I went through the installation....... it had to restart (and the guide on ubuntus site told me to pull out the usb, before restarting)...

Now... it just reboots, and tell me there is nothing bootable?.......

Everything is brand new, and this is clean installation... I can't figure out what I have done wrong?

Please help me, before I have pulled out the last hair on my head.

[mbokk]

So...... it just started... working... did the installation again and again and again... cant tell what I did this time........