KVM之一： linux如何配置console

 

 

 

The /usr/lib/systemd/system/getty@.service file is responsible for the virtual terminals (/dev/tty[X]). /usr/lib/systemd/system/serial-getty@.service is responsible for all other terminals, such as a serial terminal on /dev/ttyS0 .

Systemd provides a template unit file for serial getty. Template file can be found here /lib/systemd/system/serial-getty@.service

 

 

 

 

 

 

 There are many cloud platforms which are working in Linux virtualisation on back-end. In terms of connectivity we have better option in KVM, which connect it through serial console.

 In this post we would see how we could connect Ubuntu17.04 KVM Virtual machine through serial console. I remember in earlier version and distributions, it need to configure serial console in grub file, but in Ubuntu its very easy and reliable as most of configurations and settings are already configured in OS.

let’s see how things happened here …

 For this post, we are using Ubuntu-17.04 Guest Machine on Ubuntu-16.04 Host machine.

 How to setup serial console, for same we have to connect machine and login on as root user.

 We could connect on KVM Guest machine through SSH from Host Machine.

 We could connect Guest machine through VNC Viewer and could setup Serial console from there. Configuring and connecting VNC viewer posted here . This could be best option to connect Guest machine in any troubleshooting because it could configure without any network connectivity, this also make it same control which we have in serial console with Graphical User Interface from remote host.

 This is Graphical User interface on Host Machine. For this we should have access to Host Machine or Graphical desktop from remote through SSH or VNC.

 Above package should installed for this command. Like in below image we could connect KVM Guest machine.

 Configure a serial console in the Ubuntu guest

 After getting login console we need to start serial console and enable it with below two commands.

 Now we could connect serial console in easy way with virsh console command.

 

 

以下方法: 在centos6.5也适用

title: ArchLinux中KVM安装

date: 2020-01-08

author: maxzhao

tags:

工作中，经常需要使用不同平台的不同软件，这个时候虚拟机就是必需品了。在 Linux 上比较常见的有 kvm、Xen、VirtualBox、vmware workstation 。

现在笔记本大多都是直接安装各个发行版的 Linux ，这时候就非常有必要选择一个虚拟机来安装 windows 。

Kernel-based Virtual Machine 的简称，是基于内核的开源虚拟化，在 Linux2.6.20 之后集成在各个主要的发行版本。 KVM 的虚拟化需要硬件支持（如 Intel VT 技术或者 AMD V技术 )。是基于硬件的完全虚拟化。在2008年的时候，红帽发言人表示， KVM 相比 Xen 有着更好的可管理性以及更高的性能。因此 RHEL6 以及之后的版本，默认支持 KVM 。

挺复杂的，这个我是按照 [Wiki]( https://wiki.archlinux.org/index.php/KVM_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87) 安装了，不需要动脑子。

后续有变革在改进。

下面还有一个详细介绍安装了，大家也可以试一下。

https://blog.csdn.net/sanxinge/article/details/52347998

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