Book Image

Mastering Proxmox - Second Edition

By : Wasim Ahmed
Book Image

Mastering Proxmox - Second Edition

By: Wasim Ahmed

Overview of this book

Proxmox is an open source server virtualization solution that has enterprise-class features to manage virtual machines, to be used for storage, and to virtualize both Linux and Windows application workloads. You begin with refresher on the advanced installation features and the Proxmox GUI to familiarize yourself with the Proxmox VE hypervisor. You then move on to explore Proxmox under the hood, focusing on the storage systems used with Proxmox. Moving on, you will learn to manage KVM Virtual Machines and Linux Containers and see how networking is handled in Proxmox. You will then learn how to protect a cluster or a VM with a firewall and explore the new HA features introduced in Proxmox VE 4 along with the brand new HA simulator. Next, you will dive deeper into the backup/restore strategy followed by learning how to properly update and upgrade a Proxmox node. Later, you will learn how to monitor a Proxmox cluster and all of its components using Zabbix. By the end of the book, you will become an expert at making Proxmox environments work in production environments with minimum downtime.
Table of Contents (21 chapters)
Mastering Proxmox - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Proxmox node issues


This section contains issues related to the Proxmox node itself.

Issue – Fresh Proxmox install stuck with /dev to be fully populated error during node reboot

Solution: This issue occurs when the OS tries to boot with a non standard VGA driver. To prevent this issue, we need to add and modify some grub options. Restart the node, and then press 'e', without the quotation marks from the Proxmox boot menu. At the end of the Kernel boot line, add the following nomodeset, as shown in the following screenshot:

Press Ctrl+X or F10 to boot the node normally. To make this option permanent, make the following modifications in /etc/default/grub:

Uncomment GRUB_TERMINAL=console

Comment out GRUB_GFXMODE=some_X,some_Y

Issue – Rejoining a node to a Proxmox node with the same old IP address

Solution: If you are rejoining a Proxmox node back to the cluster with the same IP address, then the joining command must run with the --force option. Run the following command from the node that is being...