How to install kernel virtual machine on rocky linux 8.6
To install Kernel-based Virtual Machines on Rocky Linux 8.6
Introduction:
Kernel-based Virtual Machines (KVM) are open-source virtualization technologies built into Linux® operating systems. In particular, KVM allows a host machine to run multiple, isolated virtual environments called guests or virtual machines (VMs).
Step1 : Check the installed version of OS by using the below command
[root@localhost ~]# cat /etc/os-release
NAME="Rocky Linux"
VERSION="8.6 (Green Obsidian)"
ID="rocky"
ID_LIKE="rhel centos fedora"
VERSION_ID="8.6"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Rocky Linux 8.6 (Green Obsidian)"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:rocky:rocky:8:GA"
HOME_URL="https://rockylinux.org/"
BUG_REPORT_URL="https://bugs.rockylinux.org/"
ROCKY_SUPPORT_PRODUCT="Rocky Linux"
ROCKY_SUPPORT_PRODUCT_VERSION="8"
REDHAT_SUPPORT_PRODUCT="Rocky Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="8"
Step 2 : Install and list the groups list by using the below command
[root@localhost ~]# yum groups list
Rocky Linux 8 - AppStream 5.7 MB/s | 9.6 MB 00:01
Rocky Linux 8 - BaseOS 4.8 MB/s | 6.7 MB 00:01
Rocky Linux 8 - Extras 10 kB/s | 11 kB 00:01
Last metadata expiration check: 0:00:01 ago on Sat 03 Sep 2022 05:36:06 PM EDT.
Available Environment Groups:
Server
Minimal Install
Workstation
Virtualization Host
Custom Operating System
Installed Environment Groups:
Server with GUI
Installed Groups:
Container Management
Headless Management
Available Groups:
.NET Core Development
RPM Development Tools
Development Tools
Graphical Administration Tools
Legacy UNIX Compatibility
Network Servers
Scientific Support
Security Tools
Smart Card Support
System Tools
Step 3: Install the Virtualization Host from grouplist by using the below command
[root@localhost ~]# yum groupinstall "Virtualization Host"
Last metadata expiration check: 0:00:36 ago on Sat 03 Sep 2022 05:36:06 PM EDT.
Dependencies resolved.
=====================================================================================================
Package Arch Version Repo Size
=====================================================================================================
Upgrading:
NetworkManager x86_64 1:1.36.0-7.el8_6 baseos 2.3 M
NetworkManager-adsl x86_64 1:1.36.0-7.el8_6 baseos 148 k
NetworkManager-bluetooth x86_64 1:1.36.0-7.el8_6 baseos 174 k
NetworkManager-libnm x86_64 1:1.36.0-7.el8_6 baseos 1.8 M
NetworkManager-team x86_64 1:1.36.0-7.el8_6 baseos 152 k
NetworkManager-tui x86_64 1:1.36.0-7.el8_6 baseos 345 k
NetworkManager-wifi x86_64 1:1.36.0-7.el8_6 baseos 193 k
NetworkManager-wwan x86_64 1:1.36.0-7.el8_6 baseos 180 k
bash x86_64 4.4.20-4.el8_6 baseos 1.5 M
bpftool x86_64 4.18.0-372.19.1.el8_6 baseos 8.8 M
curl x86_64 7.61.1-22.el8_6.4 baseos 351 k
dbus x86_64 1:1.12.8-18.el8_6.1 baseos 40 k
dbus-common noarch 1:1.12.8-18.el8_6.1 baseos 45 k
dbus-daemon x86_64 1:1.12.8-18.el8_6.1 baseos 239 k
dbus-libs x86_64 1:1.12.8-18.el8_6.1 baseos 183 k
dbus-tools x86_64 1:1.12.8-18.el8_6.1 baseos 85 k
dbus-x11 x86_64 1:1.12.8-18.el8_6.1 appstream 59 k
device-mapper x86_64 8:1.02.181-3.el8_6.2 baseos 376 k
device-mapper-event x86_64 8:1.02.181-3.el8_6.2 baseos 270 k
device-mapper-event-libs x86_64 8:1.02.181-3.el8_6.2 baseos 269 k
device-mapper-libs x86_64 8:1.02.181-3.el8_6.2 baseos 409 k
Step 4 : Install the virt-manager by using the below command
[root@localhost ~]# yum install virt-manager
Last metadata expiration check: 0:06:20 ago on Sat 03 Sep 2022 05:36:06 PM EDT.
Dependencies resolved.
=====================================================================================================
Package Arch Version Repository Size
=====================================================================================================
Installing:
virt-manager noarch 3.2.0-4.el8 appstream 620 k
Installing dependencies:
python3-argcomplete noarch 1.9.3-6.el8 appstream 59 k
python3-libvirt x86_64 8.0.0-1.module+el8.6.0+847+b490afdd appstream 331 k
virt-manager-common noarch 3.2.0-4.el8 appstream 1.0 M
Transaction Summary
=====================================================================================================
Install 4 Packages
Total download size: 2.0 M
Installed size: 9.8 M
Is this ok [y/N]: y
Downloading Packages:
(1/4): python3-argcomplete-1.9.3-6.el8.noarch.rpm 302 kB/s | 59 kB 00:00
(2/4): python3-libvirt-8.0.0-1.module+el8.6.0+847+b490afdd.x86_64.rp 1.2 MB/s | 331 kB 00:00
(3/4): virt-manager-3.2.0-4.el8.noarch.rpm 2.2 MB/s | 620 kB 00:00
(4/4): virt-manager-common-3.2.0-4.el8.noarch.rpm 5.9 MB/s | 1.0 MB 00:00
-----------------------------------------------------------------------------------------------------
Total 1.7 MB/s | 2.0 MB 00:01
Complete!
Step 5: Enable the service by using the below command
[root@localhost ~]# systemctl enable libvirtd
Step 6: Start the service by using the below command
[root@localhost ~]# systemctl start libvirtd
Step 7: Check the status by using the below command
[root@localhost ~]# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2022-09-03 17:57:37 EDT; 9s ago
Docs: man:libvirtd(8)
https://libvirt.org
Main PID: 58693 (libvirtd)
Tasks: 21 (limit: 32768)
Memory: 50.6M
Step 8: Run the below command to get KVM console
[root@localhost ~]# virt-manager
Conclusion:
We have reached the end of this article. In this guide, we have walked you through the steps required to install kernel virtual machine on rocky Linux 8.6. Your feedback is much welcome.
Q
How to get hardware information on the KVM guest machine?
A
Use the command ‘virsh dominfo ’
Q
Which command is used in KVM for VMs live migration?
A
‘virsh migrate –live machine_name qemu+ssh://destination_server/system’
Q
How to verify Virtualization Technology (VT) is enabled in your server’s BIOS or not?
A
grep -E ‘svm|vmx’ /proc/cpuinfo
• vmx is for Intel processors
• svm is for AMD processors
• vmx is for Intel processors
• svm is for AMD processors
Q
How To Identify The Kvm Version?
A
To locate the KVM model use the command ‘virsh model’
• r – Running
• b – Blocked
• c – crashed
• s – Shutdown
• p – Paused