我正在尝试在 Ubuntu 16.04 上安装 KVM，但我一开始就卡住了。
我找不到包裹。有人能帮我吗？我做了sudo apt-get update
sudo apt-get install qemu-kvm libvirt-bin
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libvirt-bin is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Unable to locate package qemu-kvm
E: Package 'libvirt-bin' has no installation candidate