答案1
好的,我找到了
sudo nano /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
有内容
[libvirt Management Access]
Identity=unix-user:USER
并重新启动
sudo service libvirtd restart
确认
virsh -c qemu+ssh://USER@SERVER/system sysinfo