-a 查看网卡中 接收模块RX、发送模块TX和Autonegotiate模块的状态:启动on 或 停用off
-A 修改网卡中 接收模块RX、发送模块TX和Autonegotiate模块的状态:启动on 或 停用off
-c display the Coalesce information of the specified ethernet card
-C Change the Coalesce setting of the specified ethernet card
-g Display the rx/tx ring parameter information of the specified ethernet card
-G change the rx/tx ring setting of the specified ethernet card
-i 显示网卡驱动的信息,如驱动的名称、版本等
-d 显示register dump信息, 部分网卡驱动不支持该选项
-e 显示EEPROM dump信息,部分网卡驱动不支持该选项
-E 修改网卡EEPROM byte
-k 显示网卡Offload参数的状态:on 或 off,包括rx-checksumming、tx-checksumming等。
-K 修改网卡Offload参数的状态
-p 用于区别不同ethX对应网卡的物理位置,常用的方法是使网卡port上的led不断的闪;N指示了网卡闪的持续时间,以秒为单位。
-r 如果auto-negotiation模块的状态为on,则restarts auto-negotiation
-S 显示NIC- and driver-specific 的统计参数,如网卡接收/发送的字节数、接收/发送的广播包个数等。
-t 让网卡执行自我检测,有两种模式:offline or online
-s 修改网卡的部分配置,包括网卡速度、单工/全双工模式、mac地址等
ERROR internal error: Process exited while reading console log output: char device redirected to /dev/pts/45 (label charserial0)
ioctl(KVM_CREATE_VM) failed: 16 Device or resource busy
failed to initialize KVM: Device or resource busy
This is mostly because you have either VirtualBox or VMware running on the same machine. The reason (at least that’s what I think) is that the kernel module of VirtualBox or VMware and KVM can’t take Advantage of Intel VT-x or AMD-V at the same time.
Unable to complete install: 'unsupported configuration: hda-duplex not supported in this QEMU library
Solution One: Virt-Manager
On virt-manager, open the VM’s virtual hardware details menu, go to sound device section, and change the device model from default to ac97.
Click on “Apply” button to save the change. See if you can start the VM now.
也就是 最后一步 “勾选安装之前配置“,完成,然后将声卡改成ac97即可
Solution Two: Virsh
If you are using virsh, not virt-manager, you can edit the VM’s XML file accordingly. Look for sound section inside section, and change the sound model to ac97 as follows.