Cloud, Linux & Virtualization Archives - Page 3 of 4

Increase a KVM qcow2 Disk Offline (Ubuntu 24.04 + LVM)

Makson Lee / October 3, 2025

Goal: grow /var/lib/libvirt/images/rbe-b.qcow2 offline on the host, then expand LVM inside the Ubuntu 24.04 guest. TL;DR (commands only) Host (VM

Makson Lee / September 12, 2025

TL;DR: A file-browser style UI for Ceph RGW multisite that lets you browse, preview, and fetch objects across zones as

Makson Lee / September 8, 2025

This follow-up shows the cleanest, minimal path to put a Libvirt/QEMU VM disk on Ceph RBD and create the VM

Makson Lee / September 6, 2025

TL;DR: Power off all VMs → (optionally) stop or mask libvirt sockets so nothing auto-starts → rsync both /etc/libvirt and

Makson Lee / September 2, 2025

Goal: Compile and install ccache v4.11.3 from source on Ubuntu 24.04, with manpages. Includes expected install output, sanity checks, and

Makson Lee / September 2, 2025

Scope: apt-install Ansible, create an ansible user on the controller, provision remotes, and run a small project. 1. Install Ansible

Makson Lee / August 14, 2025

Need Python 3.11 on Ubuntu 24.04 (which ships 3.12)? Use pyenv to install 3.11 side-by-side without touching /usr/bin/python3. At a

Makson Lee / August 8, 2025

Introduction If you own a Minisforum Venus series mini PC with an AMD Ryzen 9 7940HS and run heavy workloads

Makson Lee / August 2, 2025

Introduction In the previous post, How to Configure Ceph RGW Multisite with HAProxy and Let’s Encrypt on Ubuntu 24.04, we

Makson Lee / July 27, 2025

In this post, we combine and simplify the following two guides into a single-node Ceph test environment: This setup is