[one-users] Not able to access running Ubuntu vm

[Amit Soni]

Hello,

I was trying the same thing using following parameters in the template file:

RAW = [ type = "kvm",
              data = "<devices><serial type=\"pty\"><source
path=\"/dev/pts/5\"/><target port=\"0\"/></serial><console type=\"pty\"
tty=\"/dev/pts/5\"><source path=\"/dev/pts/5\"/><target
port=\"0\"/></console></devices>" ]

However, when I accessed the machine using the virsh console I got the
following output after which it just froze. I hit "enter" many time
but no response. Although I was able to get out of the console:

virsh # console one-13
Connected to domain one-13
Escape character is ^]

I read somewhere that this can be because I have not enabled the VM to
be accessed from serial console so then I followed the following guide
to make some modification in the VM:

https://help.ubuntu.com/community/SerialConsoleHowto

However, after making the changes when I boot the VM using the "qemu"
command I just  see the some output like follows:

fsck from util-linux-ng 2.17.2
/dev/sda1: clean ... files, ... blocks
 * Starting AppArmor profiles

And that's it. After this there is no response from the VM. However, I
am able to ssh into the VM (since I have started it from qemu
command).

But the important thing is, even after these changes for enabling
serial console in the VM and starting the VM from the opennebula with
the above mentioned RAW parameters, I get the same result. It get the
same output upon accessing the console and after that it just freezes.

Could see any mistake that I might be making.

Thanks & Regards,
Amit


2011/4/14 Idafen Santana Pérez <idafensp at gmail.com>:
> Hi Zeeshan,
>
> how do you access a running VM?
>
> Regards
> Idafen
>
> On Thu, Apr 14, 2011 at 6:13 PM, Zeeshan Ali Shah <zashah at pdc.kth.se> wrote:
>> Manually Console to the running VM to see what went wrong ..
>>
>> /Zeeshan
>>
>> On Thu, Apr 14, 2011 at 5:40 PM, Amit Soni <get.amitsoni at gmail.com> wrote:
>>>
>>> Hello,
>>>
>>> I manually created a Ubuntu IMG by installing the Ubuntu 10.10 server
>>> ISO using qemu command as follows:
>>>
>>> qemu-img create -f qcow2 vdisk.img 10G
>>> qemu-system-x86_64 -hda vdisk.img -cdrom /path/to/ubuntu-server.iso
>>> -boot d  -m 384
>>>
>>> Then I added the network contextualisation scripts as mentioned in the
>>> first section of the article:
>>> http://opennebula.org/documentation:archives:rel2.0:cong
>>> But I did one change; I added the execution of the "vmcontext" script
>>> in the "/etc/init.d/networking" script since adding the "vmcontext"
>>> script in the runlevel 2 didn't helped.
>>>
>>> Now when I start the installed Ubuntu IMG using the following command,
>>> I get the desired IP in the machine. I am also able to SSH to the
>>> machine:
>>>
>>> qemu-system-x86_64 -hda ubuntu-server.img  -net
>>> nic,macaddr=02:00:c0:a8:02:08 -net tap
>>>
>>> However, when I use this IMG in the opennebula template file the
>>> machine goes in the "runn" state but I am not able to access the
>>> machine. My template file is as follows:
>>>
>>> NAME   = ubuntu
>>> CPU    = 1
>>> MEMORY = 400
>>>
>>> DISK   = [
>>>  source   = "/srv/cloud/images/ubuntu/ubuntu-server.img",
>>>  target   = "hda",
>>>  readonly = "no" ]
>>>
>>> NIC    = [ NETWORK = "VM_LAN" ]
>>>
>>> FEATURES=[ acpi="no" ]
>>>
>>> Moreover, when I start the standard ttylinux IMG in am easily able to
>>> SSH to the machine.
>>> Can anyone guide me to some standard documentation of how to create a
>>> IMG for opennebula starting from an ISO.
>>>
>>> Thanks & Regards,
>>> Amit Soni
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>>
>>
>> --
>>
>> --
>> Regards
>>
>> Zeeshan Ali Shah
>> System Administrator
>> PDC-Center for High Performance Computing
>> KTH-Royal Institute of Technology , Sweden
>>
>> +46 8 790 9115
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>>
>



-- 
Amit Soni
Email-id: get.amitsoni at gmail.com, get.amitsoni at hotmail.com