那些遇到过的问题

使用 virt-install 从命令行安装 VM

Jér*_*ôme 16 kvm

免责声明：

我现在virt-manager用来创建和管理我的虚拟机，它真的是一个救星。如果主机没有图形显示，它可以远程使用（从第三台机器，通常是您的工作站）。

vnc在我发现的安装教程中出现的情况让我认为“推荐”过程需要在主机、来宾或两者上都有 X 东西。绝对不。我的错。如果您处于相同的情况，请在尝试从命令行安装 VM 之前三思而后行。

我正在尝试在 Debian 主机中安装 Debian VM virt-install，但我不知道如何将 .iso 映像传递给它。

virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial'

Starting install...
Retrieving file info...                                                                                                                                         |  160 B     00:00 ... 
ERROR    Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start prod
otherwise, please restart your installation.
root@versailles:/etc#
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我看到的解决方案似乎很扭曲，比如使用 apache 在本地提供 .iso 图像，就好像它来自遥远的地方一样。

我不敢相信事情这么复杂。是吗？

man virt-install 说：

If you want to use those options with CDROM media, you have a few options:

         * Run virt-install as root and do --location ISO

         * Mount the ISO at a local directory, and do --location DIRECTORY

         * Mount the ISO at a local directory, export that directory over local http, and do --location http://localhost/DIRECTORY
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这不是我在做什么吗？

有人说他将 .iso 移动到 /cdrom 并且它起作用了，但我不明白他到底做了什么，我无法复制。

我不能在这个问题中使用--cdrom代替--locationas，因为只有使用.--extra-args--location

virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --cdrom=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial'
ERROR    --extra-args only work if specified with --location. See the man page for examples of using --location with CDROM media
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编辑：

登录 --debug

virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args='console=tty0 console=ttyS0,115200n8 serial' --debug
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:187) Launched with command line: /usr/share/virt-manager/virt-install --connect qemu:///system --virt-type kvm --name prod --ram 6144 --disk /srv/vm/prod.qcow,format=qcow2,size=10 --location=/home/jerome/debian-8.0.0-amd64-netinst.iso --network bridge=br0 --os-type linux --os-variant debianwheezy --extra-args=console=tty0 console=ttyS0,115200n8 serial --debug
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:195) Requesting libvirt URI qemu:///system
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:199) Received libvirt URI qemu:///system
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:193) Requesting virt method 'default', hv type 'kvm'.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:432) Received virt method 'kvm'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:433) Hypervisor name is 'hvm'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:476) DISPLAY is not set: defaulting to nographics.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (guest:208) Setting Guest.os_variant to 'debianwheezy'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (diskbackend:171) Path '/srv/vm' is target for pool 'srv-kvm'. Creating volume 'prod.qcow'.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (connection:228) Fetching volume XML failed: Storage volume not found: no storage vol with matching path '/media/cdrom0/debian-8.0.0-amd64-netinst.iso'
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (virt-install:551) Guest.has_install_phase: True

Starting install...
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (distroinstaller:417) Using scratchdir=/var/lib/libvirt/boot
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:204) Preparing mount at /var/lib/libvirt/boot/virtinstmnt.srz86f
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:214) mount cmd: ['/bin/mount', '-o', 'ro,loop', '/home/jerome/debian-8.0.0-amd64-netinst.iso', '/var/lib/libvirt/boot/virtinstmnt.srz86f']
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:302) Finding distro store for location=/home/jerome/debian-8.0.0-amd64-netinst.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/.treeinfo
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:325) Prioritizing distro store=<class 'virtinst.urlfetcher.DebianDistro'>
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/daily/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Fedora
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:99) Fetching URI: /var/lib/libvirt/boot/virtinstmnt.srz86f/.disk/info
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:110) Saved file to /var/lib/libvirt/boot/virtinst-info.lZMVqL
Retrieving file info...                                                                                                                                                                                                  |  160 B     00:00 ... 
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:1016) Regex didn't match, not a ALT Linux distro
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/MANIFEST
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/install/netboot/version.info
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/SL
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/directory.yast
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/CentOS
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/VERSION
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Server
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/Client
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/RedHat
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/images/pxeboot/vmlinuz
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/images/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/boot/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/current/images/netboot/mini.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:183) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.srz86f/install/images/boot.iso
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (urlfetcher:225) Cleaning up mount at /var/lib/libvirt/boot/virtinstmnt.srz86f
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:234)   File "/usr/share/virt-manager/virt-install", line 876, in <module>
    sys.exit(main())
  File "/usr/share/virt-manager/virt-install", line 870, in main
    start_install(guest, continue_inst, options)
  File "/usr/share/virt-manager/virt-install", line 588, in start_install
    fail(e, do_exit=False)
  File "/usr/share/virt-manager/virtinst/cli.py", line 234, in fail
    logging.debug("".join(traceback.format_stack()))

[mer., 03 juin 2015 17:46:12 virt-install 12991] ERROR (cli:235) Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:237) 
Traceback (most recent call last):
  File "/usr/share/virt-manager/virt-install", line 560, in start_install
    dom = guest.start_install(meter=meter, noboot=options.noreboot)
  File "/usr/share/virt-manager/virtinst/guest.py", line 384, in start_install
    self._prepare_install(meter, dry)
  File "/usr/share/virt-manager/virtinst/guest.py", line 277, in _prepare_install
    util.make_scratchdir(self.conn, self.type))
  File "/usr/share/virt-manager/virtinst/installer.py", line 201, in prepare
    self._prepare(guest, meter, scratchdir)
  File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 444, in _prepare
    self._prepare_kernel_url(guest, fetcher)
  File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 347, in _prepare_kernel_url
    store = urlfetcher.getDistroStore(guest, fetcher)
  File "/usr/share/virt-manager/virtinst/urlfetcher.py", line 346, in getDistroStore
    fetcher.location))
ValueError: Could not find an installable distribution at '/home/jerome/debian-8.0.0-amd64-netinst.iso'
The location must be the root directory of an install tree.
[mer., 03 juin 2015 17:46:12 virt-install 12991] DEBUG (cli:248) Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start prod
otherwise, please restart your installation.
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start prod
otherwise, please restart your installation.
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它可以工作，--location http://ftp.us.debian.org/debian/dists/stable/main/installer-amd64/但是当 .iso 图像在本地可用时，这样做是否有点遗憾？

  • 失去可追溯性：您无法在确保获得完全相同的来源后进行复制。

  • 来自服务器/镜像的带宽成倍使用。

  • 需要上网。

  • 慢点。

Rom*_*din 10

这种方法对我有用：

virt-install --name=centos \
--memory=8196 --vcpus=2 \
--location=/var/lib/libvirt/images/CentOS-7-x86_64-Minimal-1511.iso \
--disk /var/lib/libvirt/images/centos7.qcow2,device=disk,bus=virtio,size=8 \
--network bridge:br0 \
--os-type=linux  \
--nographics \
--extra-args='console=tty0 console=ttyS0,115200n8 serial'
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  • 个人最喜欢的答案。非常简单的介绍让我理解。谢谢！ (2认同)
  • 这对于 Centos 非常有效，但不适用于 Debian 或 Ubuntu ISO 文件。您将遇到与原始问题中描述的相同的问题。解决方案是指定安装程序位置的 URL --location http://ftp.us.debian.org/debian/dists/stable/main/installer-amd64 (2认同)

yae*_*shi 7

virt-install尝试从 ISO 映像中提取内核和 initrd 文件。有了--debug你可以看到它包括整个活动环安装，搜索这些文件，等等。

Starting install...
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (Installer:182) scratchdir=/var/lib/libvirt/boot
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:184) Preparing mount at /var/lib/libvirt/boot/virtinstmnt.dwcpql
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (OSDistro:65) Attempting to detect distro:
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/.treeinfo
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/Fedora
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/Server
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/Client
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/RedHat
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/CentOS
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/SL
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/directory.yast
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/current/images/MANIFEST
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/daily/MANIFEST
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/current/images/MANIFEST
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/install/netboot/version.info
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/initrd.gz
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (OSDistro:990) Doesn't look like an Ubuntu Distro.
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/VERSION
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/VERSION
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/boot/platform/i86xpv/kernel/unix
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/platform/i86xpv/kernel/unix
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/STARTUP/XNLOADER.SYS
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/images/pxeboot/vmlinuz
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/images/boot.iso
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/boot/boot.iso
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/current/images/netboot/mini.iso
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:169) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.dwcpql/install/images/boot.iso
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] DEBUG (ImageFetcher:205) Cleaning up mount at /var/lib/libvirt/boot/virtinstmnt.dwcpql
[Wed, 03 Jun 2015 07:56:40 virt-install 29692] ERROR (cli:445) Could not find an installable distribution at '/home/yaegashi/debian-8.0.0-amd64-netinst.iso'
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我想virt-install不支持 Debian netinst ISO 映像--location（但不知何故支持 Ubuntu？）。

要使用 启动内核--extra-args，virt-install需要有那些内核和相应的 initrd 文件。 --cdrom简单地将 ISO 附加到来宾的 CD 驱动器，这不足以使用--extra-args.

如果您想使用--extra-args，我建议您通过指定离您最近的镜像的 Debian 安装程序 URL 来使用“netboot”内核/initrd 文件，如 --location http://ftp.us.debian.org/debian/dists/stable/main/installer-amd64/手册中所述。

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