openstack team mailing list archive

[Nathanael Burton <nathanael.i.burton@xxxxxxxxx>]

Actually the VNC display number varies based on how many instances may be
running on the node. Login to the box and run "virsh list" to list the
instances and get the domain id of the one in question. Then run "virsh
vncdisplay <id>" and it will output the VNC display number.  :0 means 5900,
:1 means 5901, etc...

/nate
On Aug 3, 2011 7:07 PM, "Mark Gius" <mark@xxxxxxxxxxxx> wrote:
> Ugh this was a few months ago and I haven't done much with nova recently.
> IIRC, all you have to do is connect to the :1 vnc on the nova host. So if
> you have VNC and a GUI on your nova host, you can do that from the host
with
> your favorite vncviewer (ubuntu comes with remote desktop viewer) and
> connect to :1. So the string you would type into the remote desktop viewer
> program would be
>
> localhost:1
>
> You can do this through ssh port forwarding as well.
>
> Hopefully the above is sensical.
>
> Mark
>
> On Wed, Aug 3, 2011 at 3:32 PM, Aron Matskin <aron.matskin@xxxxxxxxx>
wrote:
>
>> Mark,
>>
>> Thanks for the advice - I'll take a look at it tomorrow. Just to save me
>> some time: where is the log or/and how do I display it?
>>
>> -AM
>>
>>
>> On Thu, Aug 4, 2011 at 1:24 AM, Mark Gius <mark@xxxxxxxxxxxx> wrote:
>>
>>> A1: When I had the symptoms you are describing it was because the
instance
>>> never managed to boot from the image, and was just spinning cpu cycles
>>> displaying a "could not boot disk" type message. I figured that out by
>>> connecting to the VNC console of the instance. IIRC, you can look
through
>>> the nova logs to figure out what VNC address to hit for the instance.
>>>
>>> Mark
>>>
>>> On Wed, Aug 3, 2011 at 4:33 AM, Aron Matskin <aron.matskin@xxxxxxxxx
>wrote:
>>>
>>>> Hi all!
>>>>
>>>> Just joined the mailing list. I'd like to do some development on the
>>>> project (probably Nova). Some questions regarding how to start:
>>>>
>>>> Q1. I'm trying to setup Nova in a virtual environment -
>>>>
http://uksysadmin.wordpress.com/2011/02/17/running-openstack-under-virtualbox-a-complete-guide/-
>>>> on a Windows host. I've successfully started an instance and assigned
it a
>>>> network address:
>>>>
>>>> aron@cloud1:~/openstack/cloud/creds$ euca-describe-instances
>>>> RESERVATION r-k6e14a5w myproject default
>>>> INSTANCE i-00000001 ami-0a892947 172.241.0.1 10.0.0.3 running openstack
>>>> (myproject, cloud1) 0 m1.tiny 2011-08-02T20:28:46Z nova
>>>>
>>>> but I'm unable to connect to the address (neither from the guest nor
from
>>>> the host):
>>>>
>>>> From the guest:
>>>>
>>>> aron@cloud1:~/openstack/cloud/creds$ ping 172.241.0.1
>>>> PING 172.241.0.1 (172.241.0.1) 56(84) bytes of data.
>>>> From 172.241.0.1 icmp_seq=2 Destination Host Unreachable
>>>>
>>>> aron@cloud1:~/openstack/cloud/creds$ ping 10.0.0.3
>>>> PING 10.0.0.3 (10.0.0.3) 56(84) bytes of data.
>>>> From 10.0.0.1 icmp_seq=1 Destination Host Unreachable
>>>>
>>>> From the host:
>>>>
>>>> C:\>ping 172.241.0.1
>>>>
>>>> Pinging 172.241.0.1 with 32 bytes of data:
>>>> Reply from 172.241.0.1: Destination host unreachable.
>>>>
>>>> Pinging the guest from the host and vice versa is ok, e.g.:
>>>>
>>>> C:\>ping 172.241.0.101
>>>>
>>>> Pinging 172.241.0.101 with 32 bytes of data:
>>>> Reply from 172.241.0.101: bytes=32 time=1ms TTL=64
>>>>
>>>> What may be wrong?
>>>>
>>>> Q2. When I do succeed to setup the environment, can anybody to point me
>>>> to documentation on how to write simple code for OpenStack? Something
along
>>>> the lines of "Hello, world!", but using some features peculiar to cloud
>>>> applications.
>>>>
>>>> Q3. I have no technical knowledge about the cloud at all. Can anybody
>>>> suggest a learning path so that I quickly can gain the basic necessary
>>>> general and specific knowledge to start coding (i.e. first read the
code and
>>>> know what's flying, then fix some bugs, etc.)?
>>>>
>>>> Thanks in advance, -Aron
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>
>>