Unable to access web gui on 5.4.2

[qwelm]

I've had a 5.4.2 node running in the garage for a few years that I'd like to get back to using, but the web gui won't load. When I try accessing https://192.168.100:8006 I'm warned about an invalid certificate (expected) but when I click "Proceed" I receive an 'ERR_EMPTY_RESPONSE'.

I've used SSH to connect to the server and `systemctl status pveproxy` shows me the error "Can't locate object method "set_request_host" via package "PVE::RPCEnvironment" at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1206."

Googling that error lead me to try 'pveupdate' and 'pveupgrade' but the upgrade fails with "You are attempting to remove the meta-package 'proxmox-ve'!..."

I've also tried updating libpve-common-perl with `apt upgrade libpve-commin-perl` based on some other forum post I keep coming back to, but that too fails citing that it'll break pve-manager and qemu-server.

I'd like to get into the web ui and see about doing some in-place upgrades to get on a current proxmox version without loosing what I've already got on there. Does anyone have any pointers on how to accomplish that?

EDIT: I've also used `pvecm updatecerts --force` and tried to access from another device (unsuccesfully).

 

[Moayad]

Hello,

Proxmox VE 5.x is already EOL, I would upgrade the Proxmox VE to the latest supported version. You can upgrade your Proxmox VE server by following below wiki guide:

- PVE 5 to 6 https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0
- PVE 6 to 7 https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0
- PVE 7 to 8 https://pve.proxmox.com/wiki/Upgrade_from_7_to_8

 

[gfngfn256]

Backup all your VMs & LXCs to another medium before the update process.

You may consider a fresh install of a brand-new fresh PVE & then restore all.
This may take some tinkering with the VMs & LXCs but that is probably what I would do.