No access to WebUI and no network after update to Proxmox 9.0

[vitamin-pxx]

Hi,
I updated my Proxmox 8.4.8 to 9.0 following this guide -> https://www.youtube.com/watch?v=U776Rp6TcrE

Since then I can't log into the WebUI or via SSH. I hooked my Optiplex to my TV and during boot I get this messages

As naive as I was, I naturally did not make a backup of my LXC and VMs. The loss would not be dramatic, but it would save me time.

What could I do to fix the problem? I didn't get very far with google. I guess the message "Failed to start dkms.service" is the reason why I don't get any network connection. I also hooked up the optiplex via LAN but the LAN-Port is doing nothing like there are missing drivers or it's dead.

 

[uzumo]

Some PVE8s may work with improper settings, but some PVE9s do not seem to work.

I have also updated from PVE8 on a test machine, and after a new installation of PVE9, when I returned to the same settings, the LAN did not link up and the indicator did not light up.

After newly installing PVE9 and deleting unnecessary settings from the backup, it works when restored.

By installing on a different disk, you will not lose the disk.

The reason it stopped working in my environment is probably a setting I recently saw on Twitter to suppress log output.

 

[vitamin-pxx]

@uzumo so your recommendation is to install PVE on a different Disk (new install) and then mount the old PVE enviroment? Can you explain in more detail how this is working? I don't remember that I have done such special settings to any settings in PVE that could break PVE after updating to 9.0

 

[bbgeek17]

Hi @vitamin-pxx ,

The possible issue is the failure to mount your "hdd" to /mnt/pve. You may need to boot into rescue mode and disable the mount service. Or investigate why that mount fails, perhaps you disconnected your disk?

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[bbgeek17]

Hi , I have the same problem No access to WEBUI and no network after update

While your symptoms are similar, the cause is likely not the same. I'd recommend opening your own thread. There you should add output of "cat /etc/network/interfaces"

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[helio]

While your symptoms are similar, the cause is likely not the same. I'd recommend opening your own thread. There you should add output of "cat /etc/network/interfaces"

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

I will remove the post and start a new

 

[vitamin-pxx]

Hi @vitamin-pxx ,

The possible issue is the failure to mount your "hdd" to /mnt/pve. You may need to boot into rescue mode and disable the mount service. Or investigate why that mount fails, perhaps you disconnected your disk?

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

yeah I created a usb stick with PVE but my root password has 30 characters with A-Z, a-z, 0-9 and Symbols. It's really hard to type that in because I can't see what I'm typing. I'll try to login as root and then I need to investigate further. Any idea with what to start in terms of commands?