无法在Windows10上的WSL2 (WindowsSubSystemforLinux2)中实例化qemu
无法在Windows10上的WSL2 (WindowsSubSystemforLinux2)中实例化qemu
提问于 2020-07-07 05:02:58
目前，我正在Windows10Fastring构建(Build 20161)上试用。更具体地说，我试图使用嵌套虚拟化运行qemu虚拟机，但每次使用virt管理器创建新VM的尝试都以失败告终。
我在我的WSL2实例中使用Ubuntu18.04，它带有一个自定义构建的内核(包括与虚拟化相关的所有内容--请参阅本指南：https://boxofcables.dev/accelerated-kvm-guests-on-wsl-2/)，在我的WSL配置文件中，"nestedVirtualization“设置为"true”。更重要的是，"sudo ok“在Ubuntu实例中运行时返回正结果。
我确实在Ubuntu中安装了DBUS，并且该服务正在运行，所以我相信这不是问题的根源。我使用VcXsrv来显示X11窗口。
以下是我每次尝试时所遇到的错误：
Libvirtd.log
2020-07-07 03:33:24.507+0000: 1273: info : libvirt version: 4.0.0, package: 1ubuntu8.17 (Marc Deslauriers <marc.deslauriers@ubuntu.com> Wed, 06 May 2020 14:18:23 -0400)
2020-07-07 03:33:24.507+0000: 1273: info : hostname: LAPTOP-DRAGOS
2020-07-07 03:33:24.507+0000: 1273: error : udevGetDMIData:1818 : internal error: Failed to get udev device for syspath '/sys/devices/virtual/dmi/id' or '/sys/class/dmi/id'
2020-07-07 03:39:16.636+0000: 1261: error : virNetSocketNewConnectUNIX:715 : Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or directory
2020-07-07 03:39:29.617+0000: 1258: error : virNetSocketNewConnectUNIX:715 : Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or directory
2020-07-07 03:39:29.617+0000: 1258: error : virNetSocketNewConnectUNIX:715 : Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or directory
2020-07-07 04:01:14.141+0000: 1257: error : virKeepAliveTimerInternal:143 : internal error: connection closed due to keepalive timeoutVirt(在设置所有选项后单击“开始安装”)：
Unable to complete install: 'Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or directory'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/create.py", line 2553, in _do_async_install
guest.start_install(meter=meter)
File "/usr/share/virt-manager/virtinst/guest.py", line 498, in start_install
doboot, transient)
File "/usr/share/virt-manager/virtinst/guest.py", line 434, in _create_guest
domain = self.conn.createXML(install_xml or final_xml, 0)
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3603, in createXML
if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: Failed to connect socket to '/var/run/libvirt/virtlogd-sock': No such file or directory我做错了什么？任何输入都是非常感谢的！提前感谢！
更新:正如 建议的那样，我尝试启动virtlogd服务。由于Ubuntu18.04不使用initd，我选择了，这使我克服了最初的错误，但现在我似乎遇到了一些权限问题，因为我得到了以下内容：
Unable to complete install: 'internal error: process exited while connecting to monitor: Could not access KVM kernel module: Permission denied
2020-07-08T03:32:26.585442Z qemu-system-x86_64: failed to initialize KVM: Permission denied'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/create.py", line 2553, in _do_async_install
guest.start_install(meter=meter)
File "/usr/share/virt-manager/virtinst/guest.py", line 498, in start_install
doboot, transient)
File "/usr/share/virt-manager/virtinst/guest.py", line 434, in _create_guest
domain = self.conn.createXML(install_xml or final_xml, 0)
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 3603, in createXML
if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: internal error: process exited while connecting to monitor: Could not access KVM kernel module: Permission denied
2020-07-08T03:32:26.585442Z qemu-system-x86_64: failed to initialize KVM: Permission denied是与sudo一起运行的，因此这种权限拒绝消息似乎有点令人费解。
向你问好，德拉戈ș
回答 1
Stack Overflow用户
发布于 2022-02-11 01:22:28
在Windows 11上，我通过修复/dev/kvm实现了这个功能：
sudo chown root:kvm /dev/kvm
sudo chmod 660 /dev/kvm完全设置：
# Install virt-manager
sudo apt install -y virt-manager
# Add youself to kvm and libvirt group
sudo usermod --append --groups kvm,libvirt "${USER}"
# Fix-up permission to avoid "Could not access KVM kernel module: Permission denied" error
sudo chown root:kvm /dev/kvm
sudo chmod 660 /dev/kvm
# Stat required services
sudo libvirtd &
sudo virtlogd &
# Launch virt-manager
virt-manager &页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/62768439
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