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Setting up KVM Hypervisor on SparkyLinux 2020.9 rolled forward up to 11/08/2020 (VENV)

Due to Libvirt version 6.8.0 there is no more any problems with deployment KVM Guests on EXT4 file system.

Setting up KVM Hypervisor on Ubuntu Groovy Gorilla (20.10)

Due to version LIBVIRT&&QEMU you are forced to deploy Ubuntu 20.10 on Btrfs file system . In particular case, Virtual Environment is a fair enough.

Install KVM with UEFI Guests support on Manjaro KDE 20.1.1

Attempt to test another Linux distro Manjaro KDE 20.1.1 as Virthost managed via Cockpit Web Console, i.e. deployment and management KVM guests on the recent Manjaro KDE utilizing Web Console . Bare metal platform is Ryzen 7 3700X based with 16 GB RAM and mother board MSI X570 A-PRO ( SVM status enabled )

Attempt to evaluate Cockpit Web Console on Server Fedora 33 (VENV) based on the most recent nightly build

In current post we intend to test Cocpit Web Console functionality on pre-release Fedora 33 Server based on the most recent Fedora nightly builds list . Start with deploying Server Fedora 33 as VM (L1) on Server Fedora 32 (bare metal)

QEMU Internals: Big picture overview

  • http://blog.vmsplice.net; By Stefan Hajnoczi (Posted by dba477 on Oct 4, 2020 12:39 PM EDT)
  • Story Type: Reviews, Tutorial
I believe that this article is worth reading even in meantime as well as another one been written by the same author "QEMU Internals: Overall architecture and threading model"

Setting up Fedora 33 beta L1&&L2 KVM guests all seating on the same office LAN

Following below verifies Fedora 33 beta L1 Guest ability to perform KVM deployment Fedora 33 beta L2 Guest inside itself. Deployment is based on bridge to virtual interface of L1 F33 beta guest due to L1 guest has been deployed on external office network , L2 Guest also appears to be set up on the same external network.

Install Virtual Box on SparkyLinux 2020.09 (Debian bullseye Testing based distro)

Following below is a brief "howto" succeed with mentioned installation on SparkyLinux 2020.09 in meantime

Install Ubuntu 20.04.1 as Virtual Box Guest on Fedora 32 Server

Install Ubuntu 20.04.1 as Virtual Box Guest on Fedora 32 Server

Install CentOS 8.2 KVM Guest on SparkyLinux2020.09 via Web Cockpit Console

First notice that we are installing on Ryzen box with board MSI X570 A-PRO in UEFI mode with "kvm" enabled. First of all we intend to verify that kvm has been enabled $ dmesg | grep kvm => [ 4.376968] kvm: Nested Virtualization enabled => [ 4.376978] SVM: kvm: Nested Paging enabled => and proceed with installing Virtualization Host the same way we would do it on Debian “bullseye”

Setting up Sqlite3 Python embedded database and Sqlitebrowser on CentOS 8.2

First install "Development Tools", rebuild Python 3.8.5, after installation sqlite-devel. Afterwards build sqlitebrowser from source rather then install via snap, just a couple qt5-devel packages would have to be installed for successful build on CentOS 8.2.

Install KVM&Libvirt on SparkyLinux2020.08

Deployment of simple SparkyLinux2020.08 configuration on bare metal is supposed to be performed with "btrfs" file-systems for "/boot" and "/" .Otherwise virt-manager will report failure of deploying any guest due to /var/lib/libvirt/images/ "folder" , which for Libvirt 6.6.0 && Qemu 5.1.0, should already belong to "btrfs" formatted file-system at least at time of writing of this post.

Enable UEFI Support for KVM Virtual Machines on F32 Server via Web Cockpit Console

The major target of posting bellow is supposed to demonstrate that virt-manager is not required to enable UEFI support for KVM Guest on Linux . See recent post at Lxer "Enable UEFI Support For KVM Virtual Machines In Linux". First - don't specify "Start immediately" and switch Firmware to "UEFI" been inside Web Cockpit Console

Install Transmission with web interface on Manjaro Gnome 20.0.3

Transmission by default doesn’t have the web client enabled in it. However, the packages transmission-gtk and transmission-cli are available via system repositories and would work for you with a bit a more efforts then on Debian systems. What exactly I mean is to create manually service unit for transmission-daemon according to systemd requirements and tune several kernel parameters via sysctl to avoid errors at start up of transmission-daemon service.

Install KVM && Web Cockpit Console on Manjaro Gnome 20.0.3

Attempt to test another Linux distro Manjaro Gnome 20.0.3 as Virthost managed via Cockpit Web Console, i.e. deployment and management KVM guests on the recent Manjaro GDM utilizing Web Console rather then virt-manager .

Install KVM && Web Cockpit Console on SparkyLinux 2020.6

It's nice to have virt-manager installed ( Spice console ) but presence of Web Cockpit Console is quite enough to manage guest's deployment via clicking button "Remote Virt-viewer" built into Cockpit Web Console. Bridge attached to external network interface was also created pretty smoothly utilizing network management section inside Web Console.

Install KVM && Web Cockpit Console on Fedora 32 Server

The core target of deployment below is to create KVM guest on F32 Server Virthost attached to external office LAN rather then to default libvirt network. As bridge creating tool Web Cockpit Console was selected. Spice console is still utilized to manage guest forked via Web Console.

3 Ways to Create a Network Bridge in RHEL/CentOS 8

  • https://www.tecmint.com/; By Aaron Kili (Posted by dba477 on Jun 19, 2020 6:39 PM EDT)
  • Story Type: Tutorial; Groups: Linux, Red Hat
A network bridge is a data-link layer device that interconnects two or more network segments, offering communication between them. It creates a single network interface to set up a single aggregate network from multiple networks or network segments. It forwards traffic based on the MAC addresses of hosts (stored in a MAC address table).

Install Grub Customizer on SparkyLinux 2020.06

Grub Customizer is a GUI management tool for updating the default configurations of the grub bootloader. The important thing is that in the case when something went wrong during editing session you have an option to discard updates when quieting Grub Customizer

What You Need to Know About Snaps on Ubuntu 20.04

  • https://www.howtogeek.com; By Dave McKay (Posted by dba477 on Jun 12, 2020 10:31 PM EDT)
  • Story Type: Reviews, Tutorial; Groups: Ubuntu
Ubuntu 20.04 Focal Fossa is a fantastic release that’s been widely praised. However, the decision to change the Software Center to install snap-based applications is controversial. We’ll explain what that means for you.

SparkyLinux 2020.06 shows up amazing performance even running Gnome 3.36.2

  • https://dbaxps.blogspot.com; By Boris Derzhavets (Posted by dba477 on Jun 12, 2020 7:19 AM EDT)
  • Story Type: Tutorial; Groups: Debian
Sparky Linux has received the system upgrade powered by the latest Debian testing reports as of June 5, 2020, so you are supposed to get a lot of improvements with this release. You can also switch to Linux kernel version 5.7.1 via standard Debian's commands. Just keep in mind Sparky 2020.06 belongs the (semi-)rolling line.

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