![在客户机中使用多个 virtio 磁盘更改 KVM 启动顺序](https://linux22.com/image/645198/%E5%9C%A8%E5%AE%A2%E6%88%B7%E6%9C%BA%E4%B8%AD%E4%BD%BF%E7%94%A8%E5%A4%9A%E4%B8%AA%20virtio%20%E7%A3%81%E7%9B%98%E6%9B%B4%E6%94%B9%20KVM%20%E5%90%AF%E5%8A%A8%E9%A1%BA%E5%BA%8F.png)
我刚开始使用 KVM,所以在这里学到了很多东西。我有一个客户正在运行,最终使用 Virtio SCSI 和网络驱动程序(Win2k3)按照我想要的方式设置了操作系统,并且对一切都非常满意。然后我关闭系统并添加了第二个数据卷作为 Virtio。一旦我这样做,它就会将我原来的“目标设备”从“VirtIO 磁盘 1”移动到“VirtIO 磁盘 2”,现在它不会启动,除非我手动按 F12 并选择(现在是第二个)磁盘。为什么它会将我的原始磁盘设为第二个磁盘,而它是第一个添加的?更重要的是,我该如何重新排列它们?也许只需将它们都删除,然后以相反的顺序将它们重新添加回来?似乎应该有一个配置选项或 XML 文件中的编辑。
我确实尝试编辑 vmname.xml 文件并找到了该选项。我按照我喜欢的顺序将其添加到每个磁盘设备,但它总是无法启动。它似乎只会尝试第一个硬盘并停在那里。而且它似乎忽略了 XMl 配置中的启动顺序参数。
我现在将继续删除并重新添加,但我很好奇,这不应该是在不删除设备的情况下进行配置吗?
我正在运行 Ubuntu 14.04,它相当新。我认为 libvirtd 是 1.2.2。如果有任何其他规格可能有帮助,请告诉我。谢谢您的帮助!Greg
快速更新:我尝试移除两个磁盘,关闭 virt-manager,然后重新打开。然后我先添加了 datavol,然后添加了 OSVolume(应该是第一个磁盘),然后它真的坚持保持倒序!这没用。
如果磁盘顺序是反向的,我该如何让客户机启动?(无需手动启动到 F12 选项)
[编辑:客人的 virsh dumpxml]
不过,由于我重新添加了磁盘,所以我看到启动顺序标签现在已被删除。我希望此磁盘是第一个:
/dev/zvol/dpool/vm/kvm/disk/alinos/osvol
<domain type='kvm' id='80'>
<name>alinos</name>
<uuid>a161efe4-245a-953b-89e3-04fa3b914f79</uuid>
<memory unit='KiB'>3145728</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>2</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='i686' machine='pc-i440fx-trusty'>hvm</type>
<boot dev='hd'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<cpu mode='custom' match='exact'>
<model fallback='allow'>SandyBridge</model>
<vendor>Intel</vendor>
<feature policy='require' name='vme'/>
<feature policy='require' name='dtes64'/>
<feature policy='require' name='vmx'/>
<feature policy='require' name='erms'/>
<feature policy='require' name='xtpr'/>
<feature policy='require' name='smep'/>
<feature policy='require' name='pcid'/>
<feature policy='require' name='est'/>
<feature policy='require' name='monitor'/>
<feature policy='require' name='smx'/>
<feature policy='require' name='tm'/>
<feature policy='require' name='acpi'/>
<feature policy='require' name='osxsave'/>
<feature policy='require' name='ht'/>
<feature policy='require' name='pdcm'/>
<feature policy='require' name='fsgsbase'/>
<feature policy='require' name='f16c'/>
<feature policy='require' name='ds'/>
<feature policy='require' name='tm2'/>
<feature policy='require' name='ss'/>
<feature policy='require' name='pbe'/>
<feature policy='require' name='ds_cpl'/>
<feature policy='require' name='rdrand'/>
</cpu>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm-spice</emulator>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<target dev='hdc' bus='ide' tray='open'/>
<readonly/>
<alias name='ide0-1-0'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<disk type='file' device='floppy'>
<driver name='qemu' type='raw' cache='none'/>
<target dev='fda' bus='fdc'/>
<alias name='fdc0-0-0'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='/dev/zvol/dpool/vm/kvm/disk/alinos/datavol'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='/dev/zvol/dpool/vm/kvm/disk/alinos/osvol'/>
<target dev='vdb' bus='virtio'/>
<alias name='virtio-disk1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</disk>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<controller type='ide' index='0'>
<alias name='ide0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='fdc' index='0'>
<alias name='fdc0'/>
</controller>
<controller type='scsi' index='0'>
<alias name='scsi0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</controller>
<controller type='usb' index='0' model='ich9-ehci1'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<alias name='usb0'/>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<alias name='usb0'/>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<alias name='usb0'/>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x2'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:89:65:18'/>
<source bridge='br0'/>
<target dev='vnet0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='vnc' port='5901' autoport='yes' listen='127.0.0.1'>
<listen type='address' address='127.0.0.1'/>
</graphics>
<video>
<model type='vmvga' vram='9216' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</memballoon>
</devices>
<seclabel type='none'/>
</domain>
答案1
将所需磁盘设置为 virtio-disk0,目标为 /dev/vda。磁盘在 XML 中的显示顺序也很重要,因此请确保操作系统磁盘排在第一位
答案2
如果你有多个硬盘,更好的解决方案是使用
<boot order='1'/>
对于要启动的第一个设备,
<boot order='2'/>
对于第二个等,你将其放入要从其启动的每个设备中。我将其作为设备配置的最后一行。
我的磁盘类型不同,所以我需要使用启动顺序配置。
当磁盘名称不同(例如虚拟磁盘和硬盘分区)时,仅更改磁盘名称是行不通的。
您还必须删除
<boot dev='hd'/>
来自 os 部分