no hardware virtualization support?啥错误？

lcgjk

刚买了ros 4.17的版本 调试后运行了几天，感觉还不错！随即安装了dude 及rm3.9（在此感谢肌肉和阿湘 ），皆运行正常；
今日客户反映无法联网，重新启动后，日志显示：no hardware virtualization support，翻译成中文：没有硬件虚拟化支持。不知道是啥错误？第一次碰到，是版本的原因还是硬件或者软件的故障？

jt00278

可能和KVM有关系……

lcgjk

百科名片
KVM：KVM 交换机通过直接连接键盘、视频和鼠标 (KVM) 端口，让您能够访问和控制计算机。KVM 技术无需目标服务器修改或软件。这就意味着可以在 Windows 的 BIOS 环境下，随时访问目标计算机。KVM 提供真正的主板级别访问，并支持多平台服务器和串行设备。

没有这个设备。

cdmke

KVM好像是ROS的功能。和百科名片不一样的吧

ksw520

因为你使用的cpu不支持 vt 类技术，KVM没办法运行，所以有此警告。可以不必理会，不想看到这提示就把kvm包卸载了。

lcgjk

RouterOS和虚拟化
这年头，虚拟化已经被炒得无以复加，连路由器都在朝这方面发展，cisco就已在其IOS上推出了这项特性，MikroTik也不例外，早些时候我并不以为意，觉得网络设备上搞虚拟化有些本末倒置了。今天惊闻RouterOS居然可以跑我所钟爱的OpenWRT虚拟机，这让我兴奋不已，因此稍微了解了一下RouterOS的虚拟化技术。

目前RouterOS支持3种虚拟化技术：metarouter，xen和kvm，其中metarouter是MikroTik自己研发的，而xen和kvm则是开源社区的两大虚拟化技术。
开始，我以为RouterOS仅作为domU存在于xen中，谁知道，它自己可以作为dom0，这令我很意外，作为生产服务器，用户凭什么不选RedHat/CentOS而选RouterOS呢？毕竟RedHat和CentOS才是久经考验的dom0。另外，自4.4版本开始，RouterOS将放弃xen，xen好可怜，自从被citrix收购后，一直悠悠不得志，反而是kvm被RedHat收购后风生水起，这两年发展迅猛。在开源的世界里，竞争更显得残酷和无情，毕竟没有成本的顾虑，抛弃起来也更随意、更迅速。
那在RouterOS上实现虚拟化，能给用户带来什么好处呢？
In the datacenter

•consolidate a number of routers on one hardware platform
•consolidate routing services and higher levels services such a VOIP switches in the same box
•use a guest machine on top of a router for custom features such as accounting, LDAP or legacy networking
•redundant routers much easier and cheaper to have available in case of crashed systems
In the hosting center

•use RouterOS and extensive networking features as a host with a server (mail, http, ftp…) running as guest or multiple guest virtual machines
•offer virtual routers with VPN solutions that give a network administrator customer his own router on a highspeed backbone to make any kind of tunneled intranet or simply VPN access system
At the wireless ISP client site

•set up two isolated routers and set the wireless control only for the router controlled by the WISP while the Ethernet side router is fully under the clients control
At multiclient sites (such as office buildings)

•in locations serving multiple clients by Ethernet from one backbone connection (wired or wireless), give each customer control over his own isolated virtual router
For network planning and testing

•build a virtual network on one box with the same topography as a planned network and test the configurations so that the fine tuning of the configurations can be done in the lab and not in the field, simulate and monitor the network with advanced scripting and The Dude network monitor utility
In custom applications

•develop your own programs (and even Linux distributions) that can be installed on MikroTik supported platforms with minimum difficulty as software patches and virtual drivers are provided for guest systems
•use low cost RouterBOARD embedded systems easily with your own Linux and the advantage that it will work across all RouterBOARDS with the same CPU
上面是wiki.mikrotik.com中列出的应用场景，我觉得比较有用的是可以在一台RouterOS宿主上面跑多个RouterOS虚拟机，实现分而治之，节省硬件投入成本，适合于主机托管；另一个就是用来做测试和教学了，譬如在RB450G上安装metarouter、RouterOS和OpenWRT。
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谢谢 又学到新东东了！