Virtio disks not shown in lshw output

[David Britton]

When adding virtual machines to maas, if I have created disks as virtio (which I think is the fastest option in most configurations), only the first such disk is detected by MAAS, the others do not show up in the hardware report.

Steps to reproduce:

1) create vm, create two disks on the virtio bus
2) enlist/commission vm
3) click on hardware details link and search for 'disk'.

[Julian Edwards (julian-edwards)]

MAAS just uses lshw for this. If you log in to the node you created and run lshw, do you see it? If not we should retarget the bug to there.

[Julian Edwards (julian-edwards)]

If the disks are not virtio, does it do what you expect?

[David Britton (dpb)]

Yes, AFAICT, no problems there. I've tried with IDE and SATA.

On Mon, Aug 11, 2014 at 9:16 PM, Julian Edwards <email address hidden>
wrote:

> If the disks are not virtio, does it do what you expect?
>
> --
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> report.
> https://bugs.launchpad.net/bugs/1355309
>
> Title:
> Virtio disks not detected by MAAS
>
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--
David Britton <email address hidden>

[Julian Edwards (julian-edwards)]

Ok thanks for the info. From the XML output it looks like none of the virtual devices have got any size data. The XPATH expression that the code uses is:

_xpath_storage_bytes = """\
    sum(//node[@class='volume']/size[@units='bytes'])
    div 1024 div 1024
"""

So I'm not sure how it gets the first disk with that. This looks more like a bug in lshw to me, what do you think?

[David Britton (dpb)]

On Tue, Aug 12, 2014 at 05:05:01AM -0000, Julian Edwards wrote:
> Ok thanks for the info. From the XML output it looks like none of the
> virtual devices have got any size data. The XPATH expression that the
> code uses is:
>
> _xpath_storage_bytes = """\
> sum(//node[@class='volume']/size[@units='bytes'])
> div 1024 div 1024
> """
>
> So I'm not sure how it gets the first disk with that. This looks more
> like a bug in lshw to me, what do you think?

Sounds reasonable to me, can we add that project here? I'll leave it to
you to file it how you would like.

--
David Britton <email address hidden>

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.