libguestfs is a tools for accessing and modifying virtual machine disk images. and virt-builder is a very useful tool to build a virtual image.

Installation and Usage

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sudo dnf install libguestfs-tools
virt-builder -l
virt-builder fedora-31 -o /home/fedora-31.qcow2 --size 32G --format qcow2 --arch x86_64 --root-password password:redhat --ssh-inject root --install dnf,wget,vim,git,openssl,iproute

Issues

Q: When run virt-builder -l, got failure virt-builder: error: external command ‘‘curl’ -q –config … exited with error 56 A: some link was baned by China, comment archive.libguestfs.org in /etc/virt-builder/repos.d/libguestfs.conf should fix this issue