On 2009-11-09, at 11:46 PM, Gerry Reno wrote: Adam Mooz wrote: Hello List,
I'm attempting to pass a DVD drive of a headless server into a virtual machine. So far I've managed to mount *something* into the VM, but it's being registered as a blank DVD within the VM. When I mount /dev/dvd into the bare-metal machine it registers normally as the DVD. How do I pass physical drives into a VM and back out using libvirt?
Command used:
#virsh attach-disk Montreal /dev/dvd hdc --mode readonly --driver phy --type cdrom
Connecting to uri: qemu:///system
Disk attached successfully
VM XML file:
<domain type='kvm'>
<name>Montreal</name>
<uuid>0f79ba7f-27bf-16a0-5887-6cfa2b5569f1</uuid>
<memory>2097152</memory>
<currentMemory>2097152</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64' machine='pc-0.11'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='cdrom'>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
<disk type='file' device='disk'>
<source file='(Mangled Purposely)'/>
<target dev='vda' bus='virtio'/>
</disk>
<interface type='bridge'>
<mac address='(mangled purposly)/> <source bridge='br0'/>
<model type='virtio'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
</video>
</devices>
</domain>
I haven't done this for a while but I believe you have to issue a 'detach' command afterwards. -Gerry -- Libvir-list mailing list Libvir-list@xxxxxxxxxxhttps://www.redhat.com/mailman/listinfo/libvir-list
# virsh detach-disk Montreal hdc error: this function is not supported by the hypervisor: only SCSI or virtio disk device can be detached dynamically
? Also, I'm not sure if you understood my question. When I pass in the DVD device into the VM it registers as a blank DVD. if I pass in a non-existant folder it blows up, so I know it's reading something from the real DVD drive. Mounting the real DVD drive in the bare-metal machine shows the files on the drive, but I cannot get them to appear in the VM. How do I get the same files to show up in the VM (i.e. mount the DVD drive into the VM)?
-----------------------------------------------------------------
|
--
Libvir-list mailing list
Libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list