GitHub - peterweissbier/QEMU-KVM-virt-manager-installation

install QEMU/KVM & Virtual Machine Manager

enable TPM v2.0 support

install the package swtpm

What to do if the `default` network interface is not listed

If virsh net-list is not listing any network interface just reinitialize it with,
```
sudo virsh net-define /usr/share/libvirt/networks/default.xml
```
Then just autostart it like so,
```
sudo virsh net-autostart default 
```

What to do if you cannot access storage file and get "Permission denied Error in KVM Libvirt"

Step 1: Edit /etc/libvirt/qemu.conf file:
```
sudo nano /etc/libvirt/qemu.conf
```

Step 2: Find the user and group directives. By default, both are set to "root",

 [...] 
 Some examples of valid values are:
 #
 user = "qemu"   # A user named "qemu"
 user = "+0"     # Super user (uid=0)
 user = "100"    # A user named "100" or a user with uid=100
 #
 #user = "root"
 The group for QEMU processes run by the system instance. It can be
 specified in a similar way to user.
 #group = "root"
 [...]

Uncomment both lines and replace root with your username and group with libvirt as shown below:

 [...] 
 Some examples of valid values are:
 #
 user = "qemu"   # A user named "qemu"
 user = "+0"     # Super user (uid=0)
 user = "100"    # A user named "100" or a user with uid=100
 #
 user = "sk"
 The group for QEMU processes run by the system instance. It can be
 specified in a similar way to user.
 group = "libvirt"
 [...]