proliant dl380 gen8

I have a dl380p gen8 with a p420i controller in hba mode. 2 SSDs (OS) and 6 HDDs (DATA) are installed. I tried to install Proxmox on the two SSDs in RAID 1 (ZFS). I was able to select the two hard drives and started the installation, but I got the following error message: unable to create zfs...

Hi My server is DL380p gen8 server, and I did read about and test various solutions but ALL of them failed. I must admit that most of them are about GPU passthrough, and I just need to passthrough my p420i controller from proxmox to truenas (and a sas hba later). So is there any proven way to...