1:36 a.m.
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.
5:28 a.m.
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.
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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'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso vda --type cdrom
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): vda
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 'vda'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso sda --type cdrom
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): sda
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 'scsi' and target 'sda'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso sda --type cdrom --mode readonly
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): sda
attach-disk: type(optdata): cdrom
attach-disk: mode(optdata): readonly
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 'scsi' and target 'sda'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso vda --type cdrom --mode readonly
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): vda
attach-disk: type(optdata): cdrom
attach-disk: mode(optdata): readonly
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 'vda'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso hda --type cdrom --mode readonly
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): hda
attach-disk: type(optdata): cdrom
attach-disk: mode(optdata): readonly
attach-disk: found option <domain>: fuck
attach-disk: <domain> trying as domain NAME
error: Failed to attach disk
error: internal error: Removable media not supported for cdrom device
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso hdb --type cdrom --mode readonly
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): hdb
attach-disk: type(optdata): cdrom
attach-disk: mode(optdata): readonly
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 'ide' and target 'hdb'
evil-desktop sss # virsh -d 0 attach-disk fuck
/home/sss/cd/mhdd32ver4.6.iso hdc --type cdrom --mode readonly
attach-disk: domain(optdata): fuck
attach-disk: source(optdata): /home/sss/cd/mhdd32ver4.6.iso
attach-disk: target(optdata): hdc
attach-disk: type(optdata): cdrom
attach-disk: mode(optdata): readonly
attach-disk: found option <domain>: fuck
attach-disk: <domain> trying as domain NAME
Disk attached successfully
with no luck...
5:33 a.m.
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
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2:09 p.m.
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.
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3 comments
3 participants
participants (3)
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Alexandr -
Alexandr Gluzskiy
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Daniel P. Berrange