virsh console 登录CentOS7系统

一、在kvm虚拟机中执行如下命令

systemctl start serial-getty@ttyS0.service
systemctl enable serial-getty@ttyS0.service

二、在KVM物理机中进行连接

[root@--- ~]# virsh console node-192.168.5.69-Harbor
Connected to domain node-192.168.5.69-Harbor
Escape character is ^]

CentOS Linux  (Core)
Kernel 3.10.-.el7.x86_64 on an x86_64

k8s-harbor login: root
Password:
Last login: Thu Sep   :: on ttyS0
[root@k8s-harbor ~]# 

按ctrl+]退出登录

三、连接报错 error: operation failed: Active console session exists for this domain

[root@--- ~]# ps aux | grep console
root       0.0  0.0    pts/   Sl+  :   : virsh console node-192.168.5.69-Harbor
root       0.0  0.0     pts/   S+   :   : grep --color=auto console
[root@--- ~]# kill - 162814

# 删除进程再重新登录即可