As a Linux administrator, sometimes you might be wondering whether you are working on a physical or virtual machine. Most of the time, you will be accessing and managing your servers remotely. You may not always have physical access of your servers, and you may not even actually know where the server is located. However, it is possible to check if your Linux system is physical or virtual machine using couple of Linux utilities.




Commands:
sudo apt-get install dmidecode
sudo dmidecode -s system-manufacturer
sudo dmidecode | grep Product
sudo dmidecode -s system-product-name
sudo dmidecode | egrep -i ‘manufacturer|product’
sudo dmidecode | egrep -i ‘vendor’
sudo pacman -S facter
sudo dnf install facter
sudo yum install epel-release
sudo yum installl facter
sudo zypper install facter
sudo facter virtual
sudo pacman -S lshw
sudo dnf install lshw
sudo yum install epel-release
sudo yum install lshw
sudo apt-get install lshw
sudo zypper in lshw
sudo lshw -class system
sudo dmesg | grep “Hypervisor detected”
hostnamectl status
systemd-detect-virt
yay -S virt-what
sudo yum install virt-what
sudo apt-get install virt-what
sudo virt-what
yay -S imvirt
sudo apt-get install imvirt
sudo imvirt



Chapters:
0:00 Intro
0:23 Method 1 – Using Dmidecode utility
1:53 Method 2 – Using Facter utility
2:56 Method 3 – Using lshw utility
3:41 Method 4 – Using dmesg utility
4:08 Method 5 – Using hostnamectl command
4:27 Method 6 – Using systemd-detect-virt
4:44 Method 7 – Using virt-what script
5:35 Method 8 – Using imvirt script
6:17 End screen



What you will learn:
1. How to Check if a Linux system is physical or virtual machine
a. How to find if a system is physical or virtual
2. Method 1 – Using Dmidecode utility
a. How to find your system’s hardware components, as well as other useful information such as serial numbers and BIOS revision
b. How to install dmidecode in DEB based systems such as Ubuntu, Linux Mint
c. How to find out whether your system is a physical or virtual machine
d. How to show the manufacturer’s name and virtualization software/technology
3. Method 2 – Using Facter utility
a. How to display a system’s information
b. How to install Facter in Arch Linux, Manjaro Linux, Fedora, CentOS, RHEL and openSUSE
c. How to check if the system is physical or virtual machine
4. Method 3 – Using lshw utility
a. How to displays the detailed hardware information of a Unix-like system
b. How to displays all hardware details including memory configuration, firmware version, mainboard configuration, CPU version and speed, cache configuration, bus speed, etc
c. How to install lshw utility in Arch Linux and derivatives, Fedora, RHEL and derivatives such as CentOS, scientific Linux, Debian, Ubuntu, Linux Mint and SUSE/openSUSE
5. Method 4 – Using dmesg utility
a. How We can find the system’s type using dmesg utility
b. How To check if your Linux system is physical or virtual
6. Method 5 – Using hostnamectl command
a. How We can find if out system is either virtual or physical using hostnamectl command
7. Method 6 – Using systemd-detect-virt
a. How to detects the virtualization technology and distinguish full machine virtualization from hardware or container virtualization
b. How to check if the system is physical or virtual
8. Method 7 – Using virt-what script
a. How to install virt-what script in Arch Linux, RHEL, Fedora, CentOS, Debian and Ubuntu
9. Method 8 – Using imvirt script
a. How to detect if we’re running on a virtual machine
b. How to install imvirt script in Arch Linux, Debian, Ubuntu and Linux Mint































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