Unable to install Proxmox 8.3 because it won't see my H330 RAID controller

[Fungus Mungus]

I'm working with a Dell PowerEdge R240. I have been banging my head against this problem for a couple of days now. The PROXMOX 8.3 installer won't see my hard disks on the H330 RAID controller. The 7.4 installer does and installs fine. I joined it to a cluster with an 8.3 host server and when I tried to migrate a VM, I couldn't because 7.4 won't run the 8.3 VM. So I'm stuck with a situation where I need to upgrade 7.4 to 8.x, but I don't dare go to 8.3 since it'll clobber my RAID again. I don't see any older 8.x PROXMOX installers on the site, so I'm kinda stuck.

One thing I was able to do is install 8.3 on the internal SD card of the server (it's a 30GB card). When I boot to that, Proxmox runs and I can log in, but of course, I can't see my disks on the RAID controller.

I've seen people talking about downgrading the kernel, but I'm having trouble figuring that out. How might I get out of this conundrum?

fm

 

[gfngfn256]

Older versions of Proxmox ISOs have sometimes not been fully available. Maybe the 8.2 version of these will help you.
If you install a vanilla Debian 12.9 on your server - does it find that controller/disks without issue?
If that works - you could consider installing Proxmox on top of that - as shown here.