proxmox stuck at "Loading initial ramdisk" after changing /etc/modprobe.d/vfio.conf

[eraikun]

Hello fellow server admins, I have a proxmox hypervisor for my VMs and the file system is raidz1. Today I was wondering if I could install an nvidia card and run 3D Applications so I found a promising tutorial about gpu passthrough here: https://forum.proxmox.com/threads/p...x-ve-8-installation-and-configuration.130218/

Every step worked like a charm until I have entered: echo "options vfio-pci ids=10de:2489,10de:228b" >> /etc/modprobe.d/vfio.conf and:

• echo "softdep nouveau pre: vfio-pci" >> /etc/modprobe.d/vfio.conf
• echo "softdep nvidia pre: vfio-pci" >> /etc/modprobe.d/vfio.conf
• echo "softdep nvidiafb pre: vfio-pci" >> /etc/modprobe.d/vfio.conf
• echo "softdep nvidia_drm pre: vfio-pci" >> /etc/modprobe.d/vfio.conf
• echo "softdep drm pre: vfio-pci" >> /etc/modprobe.d/vfio.conf

and now booting screen freezes at "Loading initial ramdisk" ,_,

I tried to boot into recovery mode but ... maybe it is really really slow or it froze. The last line at this moment is:

• Mounted sys-kernel-config.mount - Kernel Configuration File System

I am pretty sure the problem is due those lines I posted.

So my question: What happened why those 3 lines made the system freeze on bootup and is there any easy fix else then building proxmox from scretch

Thx in advance, eraikun

Update: I have followed this tutorial and now am able to see my virtual machines: https://www.servethehome.com/9-step-calm-and-easy-proxmox-ve-boot-drive-failure-recovery/2/

now I can see my zfs in proxmox web ui:


And I can even recover all of my vms Hurraii ^^v

Still I really just want to edit the modprobe file back to its old stage and boot from my old proxmox server and not set it up again... Any ideas how to go from here and access the pool with its system files ,_,

 

[eraikun]

I just wanted to post the answer which was to open the grub menu and change the mount path right after the initramfs entry.

When I did this I fell into the shell with zfs pool not found or could not be mounted..
Then I force mounted the zfs pool and there I could go into the /etc/modprobe.d/vfio.conf and deleted the entries!

rebootet afterwards and bum! bootet again

Now, since everything works, I will try to make nvidia run again. Let's prey