#kvm
Every post tagged kvm.
Blog posts
How to Migrate a KVM/libvirt Virtual Machine to Proxmox VE (Step-by-Step Guide)
Move an existing KVM/libvirt VM to Proxmox VE without rebuilding it. Pull the specs with virsh, copy the qcow2 disk, and import it with qm disk import.
How to Create a Fedora Server VM in Proxmox VE (Step-by-Step Guide)
Fedora rarely gets covered in Proxmox tutorials. Here's how to install Fedora Server 44 as a VM on Proxmox VE 9.2, from the Create VM wizard through Anaconda, SELinux, and enabling Cockpit.
What Is Proxmox VE? A Beginner's Guide to Open-Source Virtualization
New to Proxmox VE? Here's a plain-English explanation of what it is, how KVM and LXC fit together, who it's actually for, and how to try it before you commit real hardware.
How to Choose the Right CPU Type for a VM in Proxmox VE (host vs kvm64 vs x86-64-v2-AES)
The CPU Type dropdown in Proxmox VE decides which instruction set your VM sees. Learn the difference between host, kvm64, and the x86-64-vN tiers, and how to pick one that won't break live migration.
How to Enable Nested Virtualization in Proxmox VE (Run a VM Inside a VM)
Learn how to safely enable nested virtualization in Proxmox VE so a guest VM can run its own inner VMs, with steps for Intel and AMD, CPU type settings, and the tradeoffs to know first.
CPU Pinning and NUMA Tuning in Proxmox VE: A Practical Guide to vCPU Affinity and Topology
Map your host's NUMA topology, pin vCPUs to physical cores with affinity, and bind VM memory to the right NUMA node — a hands-on guide to deterministic, low-latency performance tuning in Proxmox VE.
Understanding Proxmox VE Disk Cache Modes: Write Back, Write Through, None, and Direct Sync Explained
Learn what each Proxmox VE disk cache mode actually does at the QEMU level, why ZFS needs Direct sync instead of the default, and how to choose safely between No cache, Write back, Write through, and Write back (unsafe) without risking data loss on host failure.
How to Fix High CPU Usage on a Proxmox VE Host
Proxmox CPU graph pinned high? Learn how to tell host load from guest load, spot iowait masquerading as CPU usage, trace a busy KVM process back to its VM, and fix the real cause.
How to Create an Ubuntu VM in Proxmox VE (Step-by-Step Guide)
New to Proxmox and want your first real VM? This step-by-step guide walks through installing Ubuntu Server as a Proxmox VM, from ISO download to guest agent setup, with the settings that actually matter for a Linux guest.
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