Category: Proxmox

Proxmox single host “invalid PVE ticket (401)”

If you are not able to log in to your proxmox server and it just show the error “permission denied – invalid PVE ticket (401)”

You can try a few things:
Try using another browser to see if the problem goes away, if so you can clear the cookies and data of your browser.

If that doesn’t fix the issue, as a last resort you can remove the file “/etc/pve/authkey.pub”, this file usually is rotated once per day but when you remove it Proxmox will recreate a new one in it’s place, this method wasn’t tested on a cluster environment.

nvidia-kernel-dkms debian buster kernel 5.3

If you use the 5.3 kernel with a Debian Buster install ( ie: Proxmox 6.1 ) you will find that the kernel module for the nvidia driver version 418.X fails to build.
Fortunately it’s an easy fix.
First you need to create a file in your sources.list.d directory:


echo 'deb http://deb.debian.org/debian buster-backports main non-free contrib
deb-src http://deb.debian.org/debian buster-backports main contrib non-free
' > /etc/apt/sources.list.d/buster-backports.list

 
Continue reading “nvidia-kernel-dkms debian buster kernel 5.3”

Custom Proxmox Instalation as a Workstation

If you read my other article in this topic Here for Proxmox 5.0 or Here for Proxmox 6.0 after following all the steps you have a fully functional proxmox server installation.
 
But you might be wondering “Can I use proxmox in my workstation?”.

The answer is “Sure you can, but you might want/need to follow a few extra steps,make sure you install the pve-headers, or else you’ll have problems with packages that need the linux kernel headers.
Continue reading “Custom Proxmox Instalation as a Workstation”

Install proxmox 6.0 on top of Debian Buster

This is mostly a copy&paste of the article about installing Proxmox 5.X on top of Debian Stretch, but with the links and repositories updated to the new Debian Buster and Proxmox 6.X

The default proxmox installation ISO is notably minimalist, and one way to be able to do simple customization and have a little bit more flexibility to for example choose the partition layout or use an encrypted LVM is to first make a basic Debian installation and then upgrade it to a full blown Proxmox Installation.

This process is simple, fast and is described in detail at the official proxmox wiki here

But here is the tl;dr version with a few extras and useful modifications from the original article:

Start by making a minimal installation of Debian 10,ie. at the software selection screen check only “SSH server” and “standard system utilities”.
After installation boot to your new Debian machine and be sure that you can resolve the host-name of your machine, the command bellow must return an IP address that is not ‘127.0.0.1’.
This step is important because Proxmox expect to have a “real”( non localhost) IP or else the installation of the package ‘proxmox-ve’ will fail during post-install.
Continue reading “Install proxmox 6.0 on top of Debian Buster”

Install proxmox 5.0 on top of Debian Stretch

The default proxmox installation ISO is notably minimalist, and one way to be able to do simple customization and have a little bit more flexibility to for example choose the partition layout or use an encrypted LVM is to first make a basic Debian installation and then upgrade it to a full blown Proxmox Installation.

This process is simple, fast and is described in detail at the official proxmox wiki here

But here is the tl;dr version with a few extras and useful modifications from the original article:

Start by making a minimal installation of Debian 9,ie. at the software selection screen check only “SSH server” and “standard system utilities”.
After installation boot to your new Debian machine and be sure that you can resolve the host-name of your machine, the command bellow must return an IP address that is not ‘127.0.0.1’.
This step is important because Proxmox expect to have a “real”( non localhost) IP or else the installation of the package ‘proxmox-ve’ will fail during post-install.
Continue reading “Install proxmox 5.0 on top of Debian Stretch”