[libvirt-users] correct way to hot-add cdrom ?

[Alexandr Gluzskiy]

Daniel P. Berrange писал 2013-12-05 13:33:
> On Thu, Dec 05, 2013 at 01:28:07PM +0200, Alexandr Gluzskiy wrote:
>> Alexandr писал 2013-12-02 09:36:
>> >Good day to all. i have problems with cdrom hot adding code. currently
>> >i using virDomainAttachDevice with type=file, device=cdrom, dev=hdc,
>> >this code works for machine with one ide hdd and one ide cdrom, but
>> >this not work for machine with only one ide hdd, and i looking for
>> >solution to hot add cdrom to machine independent of existing devices
>> >or i need way to determinate which target device can be attached to
>> >vm. thanks in advance for any help.
> 
> There is no way to hotplug a CDROM device - only disk devices can be
> hotplugged.
> 
> For CDROM/Floppy devices it is looking for an existing device with the
> given name, and then trying to change the removable media in that 
> device.
> The error you're getting shows that there is no such CDROM device with 
> the
> name 'vda' in the guest already.
> 
>> i have tested following
>> 
>> evil-desktop sss # virsh -d 0 attach-disk fuck
>> /home/sss/cd/mhdd32ver4.6.iso vdb --type cdrom
>> attach-disk: domain(optdata): fuck
>> attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
>> attach-disk: target(optdata): vdb
>> attach-disk: type(optdata): cdrom
>> attach-disk: found option <domain>: fuck
>> attach-disk: <domain> trying as domain NAME
>> error: Failed to attach disk
>> error: internal error: No device with bus 'virtio' and target 'vdb'
> 
> Daniel


thank you for reply..
oh..., i have already implemented workaround for my needs, but it's much 
harder than just create iso images.
thank you anyway.