Proxmox 6.4 Installation / Kernel boot fails on Dell R6525 Epyc 7543 (Milan)

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May 19, 2021
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Hi, we just got our brand new Baby from Dell, a R6525 with a Dual Epyc 7543 (Milan) set of CPU's.

Since it will become part of our PVE cluster, i tried to install Proxmox 6.3 on it without success, the same with Proxmox 6.4.

The system gets stuck after the boot message, at least nothing happens here anymore

`Loading initial RAM-Disk`

What i tried so far

- an installation of a current FedoraCore 34 works (kernel 5.11)
- removing quiet from command line does not help, neither adding nomodeset as a kernel parameter (things i found somewhere else).
- gparted 1.1 and 1.3 do not boot either (same behaviour)
- i assume its a visual problem, since my virtual media shows me continous loading of the media after booting (like the system is still running), especially on gparted it stops, if i blindly press <return>, it goes on loading ...
- in the installed fedora system i added the kernel/initrd from one of our running cluster nodes (Kernel 5.4.73-1-pve) and tried to boot it, also, no single output once the kernel should come up
- VGA compatible controller: Matrox Electronics Systems Ltd. Integrated Matrox G200eW3 Graphics Controller (rev 04)

- lspci see below

Do you have any ideas? or is the 6.4 installer just not yet ready?

Thanks
 

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