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KVM 域未创建

tag-icon • tag-icon kvm libvirt
KVM 域未创建

当我尝试创建新的 KVM 机器时，出现以下错误，

Unable to complete install: 'Domain has not existed.  You should be able to find more information in the logs'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/create.py", line 1910, in do_install
    guest.start_install(False, meter=meter)
  File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 1223, in start_install
    noboot)
  File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 1303, in _create_guest
    self._consolechild) = self._wait_and_connect_console(consolecb)
  File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 1328, in _wait_and_connect_console
    raise RuntimeError(_("Domain has not existed.  You should be "
RuntimeError: Domain has not existed.  You should be able to find more information in the logs

笔记： 当我尝试使用/dev/sdaXX/安装在/vmstore安装点和图像文件路径上的自定义存储池时，我收到此错误/vmstore/disk.img

错误日志

2014-03-24 21:06:48.178+0000: 7166: error : virNetSocketReadWire:1194 : End of file while reading data: Input/output error
2014-03-24 21:07:56.242+0000: 7170: warning : qemuSetupCgroupForVcpu:566 : Unable to get vcpus' pids.
2014-03-24 21:07:56.329+0000: 7166: error : qemuMonitorIO:614 : internal error End of file from monitor
2014-03-24 21:16:04.269+0000: 7167: warning : qemuSetupCgroupForVcpu:566 : Unable to get vcpus' pids.
2014-03-24 21:16:04.344+0000: 7166: error : qemuMonitorIO:614 : internal error End of file from monitor
2014-03-24 21:16:24.361+0000: 7167: warning : qemuSetupCgroupForVcpu:566 : Unable to get vcpus' pids.
2014-03-24 21:16:24.436+0000: 7166: error : qemuMonitorIO:614 : internal error End of file from monitor

答案1

我遇到了同样的问题 - 相同的错误消息。我发现如果我给它的 RAM 少于 4GB，VM 将继续创建，

  1. 例如 3GB RAM VM 开始安装

  2. 安装过程非常慢

  3. 我/var/log/libvirt/libvirtd.log 看到了如下错误：

    qemuSetupCgroupForVcpu:566 : Unable to get vcpus' pids

  4. 我没有加载所有 kvm 内核模块：

    kvm_intel              54285  0 
kvm                   333172  1 kvm_intel

    我在上面看到的列表中缺少“kvm_intel”模块（上面已经是正确的输出），并且在尝试“modprobe kvm_intel”时我收到错误

  5. 我重新启动机器，进入 BIOS，最后通过将“允许英特尔虚拟化”切换到“打开”（关闭）来修复所有问题

我做梦也没想到，BIOS 禁用了虚拟化支持，但是……这是 5 年前的 HP xw8400 工作站

*.img顺便说一句，在创建过程中，我在尝试将虚拟机安装到（原始）时也遇到了“权限被拒绝”的问题。该消息类似于：

"warning kvm is not available"

这是一个SELinux问题，因为我将默认VM存储池切换到自定义路径（不同的FS）

$ ls -alZ /var/lib/libvirt/
drwxr-xr-x. root root system_u:object_r:virt_image_t:s0 images

$ semanage fcontext -a -t virt_image_t "/data/VM_KVM/(/.*)?"

$ restorecon -R -v /data/VM_KVM/

修复了 SElinux 问题。

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