Proxmox 8.2 on HP ProLiant ML350p gen8

[lk-dgironi]

Hello,

I've a HP ProLiant ML350p gen8.
I'm trying to install Proxmox 8.2 to a HP ProLiant ML350p.
Raid controller is the HPE Dynamic Smart Array B120i Controller.
I would like to use the 4 SATA drives for data, and one additional drive attached to the internal SATA connector for Proxmox.
I'm able to install Proxmox on the additional drive. But then the drive is not found at boot.
I've tried putting the raid controller in HBA mode, so using hard drives as it was directly connected, or using the RAID controller, creating a logical unit with just one drive. The installer see the drive, and I'm able to install Proxmox, but now on boot.
I've read that a solution could be install GRUB on the USB, then boot from USB and load the Proxmox drive. So I've installed GRUB on USB, I now can boot the system to GRUB but I don't know how to target GRUB to the correct device to boot. Anyone has a guide or a grub.cfg template to use?

Thanks

 

[lk-dgironi]

Solved.
In a weired way but it works.
B120i controller is enabled.
Proxmox is installed on a SSD wired in the internal SATA connector.
On B120i a RAID 0 is built with only that drive, and that drive is set as the boot disk.
Proxmox is installed on that disk formatted as ext4.
The other disk, while are not used in the B120i, are seen by Proxmox and can be formatted and used. I'm using that as ZFS.

I just get a DMA error which I solved using the fix here: https://forum.proxmox.com/threads/updated-to-8-2-dma-error.145907/
So updating /etc/default/grub as follows
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on, igfx_off iommu=pt intremap=off"
and running update-grub

I'm still in testing but I hope it will work.