I recently experienced the error Failed creating Qemu driver: exec: “qemu-system-x86_64”: executable file not found in $PATH while trying to create a Qcow2 image for KVM/QEMU using Packer on a CentOS 8 system. After some google searches trying to solve the issue I discovered the quickest solution is hard copying “qemu-kvm” to “qemu-system-x86_64” , in /usr/libexec
Locate the path of qemu-kvm binary:
$ which qemu-kvm /usr/libexec/qemu-kvm
Copy the /usr/libexec/qemu-kvm file to /usr/libexec/qemu-system-x86_64:
sudo su - cp /usr/libexec/qemu-kvm /usr/libexec/qemu-system-x86_64
Once the file is copied add /usr/libexec to your PATH
You can also persist this in bash profile.
$ vim ~/.bash_profile PATH=$PATH:$HOME/bin:/usr/libexec export PATH
You can then rerun packer command to build your OS image with debug on:
export PACKER_LOG=1 packer build <options> <hcl-or-json-file>
I hope this guide was helpful in solving the said error message.