How To Install qemu on CentOS 7
Introduction
In this tutorial we learn how to install qemu on CentOS 7.
What is qemu
QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes * Full system emulation. In this mode, QEMU emulates a full system (for example a PC), including a processor and various peripherials. It can be used to launch different Operating Systems without rebooting the PC or to debug system code. * User mode emulation. In this mode, QEMU can launch Linux processes compiled for one CPU on another CPU. As QEMU requires no host kernel patches to run, it is safe and easy to use.
We can use yum or dnf to install qemu on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install qemu.
Install qemu on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install qemu using yum by running the following command:
sudo yum -y install qemu
Install qemu on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install qemu using dnf by running the following command:
sudo dnf -y install qemu
How To Uninstall qemu on CentOS 7
To uninstall only the qemu package we can use the following command:
sudo dnf remove qemu
References
Summary
In this tutorial we learn how to install qemu on CentOS 7 using yum and dnf.